Model Engine Maker

Supporting => Vehicles & Models => Topic started by: Firebird on July 23, 2012, 09:46:02 PM

Title: A portable steam engine
Post by: Firebird on July 23, 2012, 09:46:02 PM
Hi

I started on this project a while ago and progress is being made although its fairly slow. I get side tracked easily and drift off in all sorts of strange directions, mix that with the usual domestic duties and you can see that this will take some time.

The model I am building is based (very loosely) on the Sissons portable engine. A series of articles in the Model engineer magazine in 1999 covered the building of such a model. I believe that only recently a set of castings has become available. I will not be using any castings but intend to fabricate everything myself. I will be building around available materials and I will be including designs from various engines as takes my fancy.

I must give thanks and praise to a man who has given me considerable help and guidance and I think will have to lend a hand many more times before this is finished.

Many thanks Sandy  :cheers:

The Sissons portable engine is a rare beast, not many photos exist of it. The company of Sissons was taken over by another company, J J Seekings. The following photo is of a J J seekings version.

(http://i242.photobucket.com/albums/ff17/firebird_021/seekingsportable.jpg)

The following video contains a short piece of a J J Seekings portable running, I believe in Australia. I'm sure Tel will correct me if I'm wrong.

7urKnVTsujk
What drew me to this model was the boiler design which I felt would be within my curent skill level. I own the magazines that the article was published in so I can show you just a small part of the plans, the boiler. I don't think that showing just a small section of something I own will infringe any copyright but moderators please feel free to remove the image if you see fit.

(http://i242.photobucket.com/albums/ff17/firebird_021/boilerplan.jpg)

I originally started this topic on another forum so what follows is just a brief glimpse to bring us back up to date. If anyone needs anything more detailed about any particular section please shout up and I'll do my best to oblige.

My intention is to run this model coal.

The copper tube I am using for the boiler is a piece 4 1/4" diameter x 12" long. This is considerably longer and slightly fatter than the plans called for but I decided there was little point in chopping off a short section which would be a waste. The longer boiler would make for a more substantial model.

I started out by making a few jigs to hold the boiler. A cradle from MDF and some soft wood turned in the lathe.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC01708.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC01735.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC01739.jpg)

Here the boiler is having its ends trimmed in the bandsaw, held in the jig.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC01970.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC01974.jpg)

The 2 boiler end plates were pressed in a punch and die made from some scrap oak.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02002.jpg)

Annealing the 2 end plates.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02006.jpg)

In the press

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02014.jpg)

The finished end plates

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02022.jpg)

After a light trim in the lathe they fit perfectly

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02033.jpg)

One hase a hole machined for the firebox tube.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02220.jpg)

The other has 9 3/8 firetube holes drilled

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02237.jpg)

The firebox is a piece of 2 1/4 " copper tube with 1/8 walls. I made a punch and die to press the firebox tube plate from 1/8 copper plate. It then has 9 corresponding firetube holes drilled

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02204.jpg)

Loosely assembled to check for fit

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02244.jpg)

The cylinder block is being fabricated from a car brake cylinder with a .7" bore. It machines beautifully. A block of steel and a curved section of steel are screwed onto a machined flat with 3 4mm stainless steel countersunk socket head screws

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02335.jpg)

The valve chest is machined from a piece of 1/2" brass bar.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02351.jpg)

The valve chest cover is made from 1/8" brass and has a steam inlet silver soldered on. I have made a displacement lubricator which screws straight into the steam inlet in the valve chest cover.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02503.jpg)

I have a small steam valve that I picked up at a steam fair that I will use. It will screw into a bush in the boiler and have a short pipe to connect it to the displacement lubricator.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02522.jpg)

Well thats pretty much where I am to date. Like I said before if anyone wants more detail about any particular section please shout up.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Dean W on July 23, 2012, 10:01:17 PM
Great looking project, Rich!  I like what I'm seeing here, a lot.
What is the tonnage on your press, and how easy were the end caps to form?  Were you able to form them with just
one annealing step?
I usually make end caps either by using a hammer to beat them over a form, or by roll forming them on the lathe. 
Your pressing method looks like it would be quite a bit quicker than either of those methods. 
Title: Re: A portable steam engine
Post by: Firebird on July 23, 2012, 10:21:54 PM
Hi Dean

Thanks

The press is home made and uses a 6 ton bottle jack. I have used this method of forming end plates before, in fact if you go over to the showcase section and look at my beam engine the boiler iend plates are made the same way. They were formed with one annealing. It doesn't take long to make up the punch and die and the hard wood stands up to it quite well and could be used again. The punch and die were given a liberal coating of a copper based grease which helps greatly.

Cheers

Rich
Title: Re: A portable steam engine
Post by: chuck foster on July 24, 2012, 04:22:41 AM
hi rich

as allways your workmanship is amazing and writups you do are very very informative  :ThumbsUp:

i look forward to the next write up on this build.....................thanks rich  :jumpingsmileys:

chuck


Title: Re: A portable steam engine
Post by: SandCam on July 24, 2012, 01:34:32 PM
 :whoohoo:

Hi Rich,

Thanks for your kind words...  my input to your project is small compared to actually building it but I am always ready to help out in any way I can.

Looking good so far. :cheers:

Best Regards.

Sandy.
Title: Re: A portable steam engine
Post by: Firebird on July 24, 2012, 10:12:01 PM
Hi

Thanks Chuck

Thanks Sandy.

Dean, afew photos of the press

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC00526.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC00523.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC00522.jpg)

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on July 24, 2012, 10:31:15 PM
Hi

I thought a few photos of the cylinder construction might be useful.

Its a car rear brake cylinder of cast iron with a very good 0.7" bore.

First job is to cut off the unwanted bit

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02249.jpg)

Hold in the 4 jaw and machine the slide valve face

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02254.jpg)

Make up a mandrel that is a good close fit in the bore. Drill and tap 6mm. Part off a bit from the end to make a thick washer then turna shoulder on the mandrel for an O ring to sit on.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02256.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02257.jpg)

Tightening the bolt expands the O ring and grips the cylinder.

Face the two ends

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02262.jpg)

There are 4 unwanted holes, 2 bolt fixing holes and the bleed nipple and brake pipe holes. Drill out and press in some steel.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02282.jpg)

Re mount in the 4 jaw and face again

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02287.jpg)

Flycut a face on one side

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02289.jpg)

Prepare a bit of 1/2" steel

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02295.jpg)

Hold in the mill vise and cut a radius with a boring bar

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02302.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02301.jpg)

I had a bit of steel tube which I machined to match the radius of the boiler. Drill the stud holes on a radius and 3 cntral holes

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02315.jpg)

Cut the piece out of the steel tube and silver solder to the steel block and clean up.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02324.jpg)

Drill the 3 central holes through the steel block and countersink. Drill and tap 3 corresponding holes in the cylinder and screw it together with stainless steel countersunk cap heads

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02335.jpg)

It fits.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02331.jpg)

I will use some more from the steel tube to make axle mounts and the like.

Cheers

Rich
Title: Re: A portable steam engine
Post by: zeeprogrammer on July 24, 2012, 11:50:15 PM
Rich!

It's good to see you.

One of the first threads I came across when I started this hobby was your build of a little water pump. I still think about that on occasion and have it in my 'someday do this' project folder.

I also remember the thread where you made the bands that went around an engine to hold the 'wood thingie strips'. (Just for you Marv.)

Sure would like to see a pic again through your windows.

Title: Re: A portable steam engine
Post by: Dean W on July 25, 2012, 12:22:17 AM
Looking good, Rich, and things are fitting up nicely!
Title: Re: A portable steam engine
Post by: chuck foster on July 25, 2012, 01:49:32 AM
thanks rich for showing the expanding mandrel, i never would have though of making one that way.

chuck
Title: Re: A portable steam engine
Post by: doubletop on July 25, 2012, 10:51:58 AM
The forum is becoming a bit of a reunion. It was Rich's thread that got me onto making my first boiler, and Sandy providing advice and input. It was one of Sandy's boilers I was making. Around the same time we were all enthralled by Zee's entertaining toy loco thread. Then Sandy disappeared, or at least your feedback did, so its good to see you back.

Its getting like a homecoming.

Pete 
Title: Re: A portable steam engine
Post by: NickG on July 25, 2012, 07:16:34 PM
This looks a really interesting project Rich, I'll definitely be following, nice work so far!  :ThumbsUp:
Title: Re: A portable steam engine
Post by: Firebird on July 26, 2012, 07:45:30 PM
Hi Thanks gents

Carl, I will have to use the pump to hydraulic test this boiler when the time comes so I'll see if I can dig out some photos.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on July 26, 2012, 08:06:56 PM
Hi

Heres a photo of the pump I built to hydraulic test my small boiler. I will use it to test this boiler. I have posted some plans and a few more photos over in the engine ancillaries section.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC07282.jpg)

Cheers

Rich
Title: Re: A portable steam engine
Post by: zeeprogrammer on July 27, 2012, 11:18:28 AM
That's the one.

Great photo too. A glimpse through your shop window.  :D
Title: Re: A portable steam engine
Post by: Stuart on July 27, 2012, 11:21:41 AM
good work there  Rich


nice to see more copper boiler work


Stuart
Title: Re: A portable steam engine
Post by: Firebird on July 28, 2012, 09:16:22 PM
Hi

A bit of progress on the cylinder today. With the help of Sandy C the ports have been worked out.

(http://i242.photobucket.com/albums/ff17/firebird_021/enlarged3-16and3-32ports.jpg)

I wasn't over confident for some reason so decide to have a practice on a bit of scrap steel.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02541.jpg)

Its a good job I did. The first attempt on the right of the picture was a complete cock up. I had all my moves worked out on paper but obviously got it wrong :embarassed: :embarassed:

The second attempt, on the left of the picture, was ok, I got it right. :) :)

The finished ports came out pretty well on size using a 3/32 and a 3/16 end mill with light cuts at maximum speed on my X1 mill. I was going to use slightly smaller cutters first then open out to size but decided to go straight in with the 3/32 and 3/16.

The cylinder set up and centred in the mill with the 3/16 cutter ready.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02542.jpg)

The exhaust port cut and the first inlet port finished.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02544.jpg)

The second inlet port cut. I have used the 3/32 cutter to square of the corners of the exhast port.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02547.jpg)

The cylinder turned sideways and cross drilled 4mm

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02551.jpg)

Then drilled and tapped  1/4 X 40

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02553.jpg)

A test fit of a spare brass adapter. (not the one I will use)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02555.jpg)

A pocket is machined into the ends of the cylinder 3/32 X 5/16 using a 3/32 end mill

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02556.jpg)

The mandrel I made earlier is used to hold the cylinder and set it up at an angle.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02563.jpg)

Then 2 X 3/32 holes are drilled from each pocket into the inlet ports.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02565.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02571.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02582.jpg)

You can just see the holes in the top port.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02575.jpg)

Heres one for Carl, looking down my shop this afternoon.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02564.jpg)

Cheers

Rich
Title: Re: A portable steam engine
Post by: zeeprogrammer on July 28, 2012, 10:57:15 PM
Thanks Rich!

I was just talking to T (wife) about the shop of my dreams (retirement is not that far off so many of our discussions are around our next home). Windows! Lots of light and a view. Can't stay bent over a machine all the time.

Nice work and, as usual, well documented.
Title: Re: A portable steam engine
Post by: mklotz on July 28, 2012, 11:53:28 PM
Be sure to provide blinds.  You don't want the dopers to be able to see all those easily-pawnable/resaleable tools.
Title: Re: A portable steam engine
Post by: Firebird on July 29, 2012, 01:05:21 PM
Hi

Thanks for the tip Marv. I cover everything when I'm finished and my rear garden is not overlooked and cannot be accessed from the street. The only way in is through the house.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on August 25, 2012, 09:55:43 PM
Hi

Well it seems ages since I got anything done and posted my progress but holidays and domestic duties come first so I'm told ::)

The valve chest I made from 1/2" thick brass to the same sort of dimensions to the one I made for my beam engine, which runs ok. I figured I must be on the right track. However, I have been talking to Sandy C and it appears all is not quite right. Although the engine would probably run ok its power and efficiency would be reduced if I built it the way I planned. I worked on the drawings with the help of Sandy and redesigned to the best of my ability but it still wasn't quite right. Sandy suggested that I make a new valve chest, thicker, to accomodate a larger slide valve but i was reluctant to start again. The stud holes were drilled in the cylinder using the valve chest as a guide. I doubted I could get the hole pattern exactly right in a new valve chest and get it to fit as well as the existing one. With all that in mind Sandy has come up with a new design that uses the existing valve chest. It means the slide valve is a little more complicated than my design and needs some careful machining but if I get it right the engine will benefit greatly.

Anyway heres todays efforts. I started with the buckle. A piece of 1/4" thick brass is secured in the mill vice and has the end and front edge squared up. A 3/8 hole is drilled to remove the bulk of the waste,
.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02585.jpg)

A 3/32 cutter is then used to square the hole.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02589.jpg)

A 1/2" is cutter is used to bring the brass to the required thickness then change back to the 3/32 cutter.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02590.jpg)

Which is used to remove the waste and bring the brass to its required width.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02594.jpg)

Then part off the buckle.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02598.jpg)

And machine to size

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02599.jpg)

Drill and ream a 1/8" hole.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02606.jpg)

Test fit a piece of 1/8" stainless steel rod.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02610.jpg)

Thats about it for the buckle.

The slide valve is made from 1/2" square brass. I startedby maching the end square then machining both sides to a shoulder.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02616.jpg)

Then a 1/8" slot is machined along the centre line.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02620.jpg)

The buckle must be a fairly good but free fit on the slide valve.

Testing the buckle on the slide valve for fit.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02626-1.jpg)

Thats about where I am to date. I hope to get the slide valve finished this weekend so will post more as it progresses

Cheers

Rich   
Title: Re: A portable steam engine
Post by: Bearcar1 on August 26, 2012, 01:34:50 AM
Glad to see that you are still in there pitching Rich, nicely done.  :ThumbsUp:


BC1
Jim
Title: Re: A portable steam engine
Post by: arnoldb on August 26, 2012, 12:20:11 PM
Good progress Rich  :ThumbsUp:

Kind regards, Arnold
Title: Re: A portable steam engine
Post by: Firebird on August 27, 2012, 07:53:52 PM
Hi

thanks Jim and Arnold

Progress was being made until I realised that on the drawing Sandy had specified using phospher bronze for the slide valve, an oversight on my part  :Doh: :Doh

Decisions decisions :shrug: should I carry on with the brass slide valve, which would be ok for light occasional use or scrap it and start again. In the end I decided to scrap it and start again.

Some time ago we met a guy at a steam fair who is a marine salvage dealer, non ferrous metals. Amongst the many items that will come in handy one day that I bought were a couple of bolts, around 1" diameter and 4" long of phospher bronze, I paid 50p each for them, a bargain.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02628.jpg)

First job was to square it off.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02629.jpg)

Then chop the head off, a useful chunk on its own

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02633.jpg)

Which gave me this/

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02635.jpg)

I machined the end down to the size needed.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02640.jpg)

In the mill and machine the shoulder.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02642.jpg)

Then machine across and make to size

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02648.jpg)

A test fit of the buckle

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02649.jpg)

Machine down to size

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02651.jpg)

Cut the 1/8" slot

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02657.jpg)

Turn over in the vise and machine to size

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02660.jpg)

Then machine the steam pocket

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02666.jpg)

After parting off from the parent material it was finished to size. Because I machined the square hole in the buckle with a 3/32" cutter it has radiused corners so the slide vakve must have its corners rounded to suit with a smalll file.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02667.jpg)

A test fit on a bit of 1/8" stainless steel rod.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02668.jpg)

The valve rod is turned down to 3/32" on one end and threaded 5BA

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02670.jpg)

After cutting to length the other end is threaded 5BA to accept buckle joint.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02676.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02678.jpg)

The valve chest is mounted in the mill vise and the centre found using a laser centre finder, you can just see the red dot. Then cntre drilled.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02679.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02681.jpg)

Set up in the 4 jaw chuck using a spring loaded cntre and dial gauge

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02684.jpg)

I used card and some steel to protect the faces. Its first drill through with a 3/32" drill right into the domed spigot at the far end. The turned down portion on the valve rod will fit in here and guide the rod. Then the outer hole is drilled and reamed 1/8" Finally I have turned a small recess in the end. I have to make a gland for the valve rod onto which I shall turn a spigot which will hopefully when fitted into therecess will align everything.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02688.jpg)

A trial assembly. The brass nuts are not tightened against the sides of the buckle but will have 1/2 nuts as well as lock nuts. Steam pressure keeps the slide valve pressed against the port face but will lift off in case there is any water present.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02689.jpg)

Cheers

Rich 


Title: Re: A portable steam engine
Post by: zeeprogrammer on August 27, 2012, 10:53:43 PM
Excellent.
It always amazes me how people put to use different things.
Title: Re: A portable steam engine
Post by: NickG on August 28, 2012, 01:47:34 PM
All looks spot on - bet you never find any of those bolts again - bargain!

Nick
Title: Re: A portable steam engine
Post by: Firebird on August 28, 2012, 06:21:20 PM
Hi

Thanks Carl and Nick

I bet I don't find any again. For once one of things I bought that would come in handy one day certainly did.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on September 09, 2012, 06:40:54 PM
Hi

I had to make the slide valve again. If you look closely at this first photo you will see there is a small gap at each end between the slide valve and buckle. Although the engine would probably run ok Sandy advised making a new one to eliminate the play and therefor give the slide valve its full stroke.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02698.jpg)

The new slide valve with the old one above.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02700.jpg)

The valve chest needs a gland for the slide valve rod. Because of the reduced wall thickness to the valve chest I have had to make a piece that will be silver soldered on. Starting with some round brass it is faced and turned to size.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02706.jpg)

Then turned and drilled through 3mm

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02709.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02711.jpg)

Drilled 1/4 to depth

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02712.jpg)

This is my set up for depth drilling. A digital calipre mouhted on the tail stock

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02715.jpg)

Then reamed 1/8 and parted off

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02724.jpg)

The gland body and gland

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02725.jpg)

Make up a mandrel from steel and thread 1/8 x 40

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02730.jpg)

The two parts of the gland are mounted on the mandrel and set up in the mill and drill through tapping size for 7BA.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02733.jpg)

Then the upper part is drilled clearance size then the body is tapped 7BA

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02734.jpg)

Make 2 studs from 3/32 stainles steel and thread 7BA

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02739.jpg)

A trial assembly

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02741.jpg)

Back on the mandrel both sides are machined down

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02745.jpg)

How it will look on the valve chest

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02748.jpg)

and on the cylinder

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02752.jpg)

With the valve chest cover

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02753.jpg)

Cheers

Rich



Title: Re: A portable steam engine
Post by: zeeprogrammer on September 09, 2012, 07:46:38 PM
Nice work. I like that valve cover.
The tailstock caliper mount was interesting too. I have to think on that one a bit.
Title: Re: A portable steam engine
Post by: steamer on September 10, 2012, 01:34:25 AM
Coming along well Rich!   did you make that press?

Dave
Title: Re: A portable steam engine
Post by: Johnmcc69 on September 10, 2012, 03:36:12 AM
Cool project Rich. I'm making notes to myself about some of the techniques used here.
I love your tailstock DRO, thats slick.

John
Title: Re: A portable steam engine
Post by: Firebird on September 10, 2012, 07:43:16 PM
Hi

Thanks guys.

The tail stock DRO stems from a good while back when I only had the one digital calipre. Its designed to simply clamp in when needed without any mods to the calipre.

Dave, the press can be seen here

http://www.modelenginemaker.com/index.php/topic,275.0.html

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on September 13, 2012, 07:49:05 PM
Hi

Just had time tonight to do a bit of silver soldering. First of all I put a few light centre punch marks on the valve chest to give a thou or two clearance between the parts. The machined recess was supposed to be for a spigot on the gland body to sit in but a change of plan did away with it.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02761.jpg)

After a coating of flux the gland body is placed in position using a short length of 1/8 stainless steel rod to line it up.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02764.jpg)

Then clamped.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02765.jpg)

Set up in the brazing hearth. You can just see 2 pieces of silver solder in place each side of the gland.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02770.jpg)

And finally the guide pin is pulled out

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02771.jpg)

after silver soldering

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02773.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02776.jpg)

It seems to have gone ok. Its in the pickle now for a clean up.

Cheers

Rich


Title: Re: A portable steam engine
Post by: NickG on September 13, 2012, 08:58:09 PM
Looks spot on that silver soldering Rich  :ThumbsUp:

One question though, was there any particular reason you didn't turn the gland as part of the whole thing as you did the spiggot on the other end?

Cheer,

Nick
Title: Re: A portable steam engine
Post by: Firebird on September 13, 2012, 10:48:38 PM
Hi Nick

Not enough forward planning I'm afraid. I was going to drill and tap the end of the steam chest and screw a gland in but because of the mods to accomodate the slide valve not enough material remained to do that (I still have to file some notches in the steam chest ends to clear the valve rod locking nuts). I have to thank Sandy C for coming up with this idea to save the day. I didn't fancy having to remake the steam chest as I doubted I could get all the stud holes to line up with the tapped holes in the cylinder. I'm making this up as I go along so I have to adapt here and there. I'm sure there will be more occasions where I have to adapt as well. If I make another of this type of engine I would include the gland as part of the steam chest. You live and learn but its all great fun.

Cheers

Rich
Title: Re: A portable steam engine
Post by: zeeprogrammer on September 13, 2012, 11:49:36 PM
No doubt it will go well though.
Always nice work.
Title: Re: A portable steam engine
Post by: Firebird on September 14, 2012, 08:18:00 PM
Hi

Thanks Carl

After a clean up a trial assembly

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02782.jpg)

Cheers

Rich
Title: Re: A portable steam engine
Post by: smfr on September 14, 2012, 09:34:32 PM
That's looking really good!
Title: Re: A portable steam engine
Post by: doubletop on September 14, 2012, 10:36:20 PM
Rich

That's looking very nice.

I was a bit worried about the sacrificial engineers clamp, they're never the same after a bit of heat. I wasn't happy with myself after I'd ruined one doing the same thing.

Pete
Title: Re: A portable steam engine
Post by: steamer on September 14, 2012, 11:56:21 PM
Ditto!   but your stuff always looks great Rich!

 :NotWorthy: :NotWorthy: :NotWorthy: :NotWorthy:
Title: Re: A portable steam engine
Post by: NickG on September 15, 2012, 11:28:41 AM
Looks extremely neat Rich. Very nice.
Title: Re: A portable steam engine
Post by: Firebird on September 15, 2012, 12:35:49 PM
Hi

Thanks guys.

The clamps were a real bargain, a set of 4 for ?10.00. I got them at a steam fair. I only use this set on the brazing hearth, they were so cheap I don't mind if they are sacrificial.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Jasonb on September 15, 2012, 01:25:35 PM
Its comming along well Rich.

Are you going to bring the exhaust out the top or drill a passage in from the front to meet the hole you have on the top of the cylinder then plug that hole?  As the exhaust really wants to run below the crank and into the chimney base to get the blast pipe in the right place.

J
Title: Re: A portable steam engine
Post by: Firebird on September 15, 2012, 08:37:47 PM
Hi Jason

The pipe has to come out the top. I did look at ways of getting it out the front but there is either an inlet port, which is drilled at angle from the cylinder end, or a valve chest stud hole in the way. Although the brake cylinder is a good start and machines well I have to make some compromises with it. I will probably make an outlet connection along the lines of the inlet on the valve chest cover to keep the exhaust pipe as close to the cylinder as possible.

Cheers

Rich
Title: Re: A portable steam engine
Post by: swilliams on September 16, 2012, 01:36:43 AM
Looking really good Rich

Steve
Title: Re: A portable steam engine
Post by: Firebird on September 22, 2012, 08:49:02 PM
Hi

Not much machining done lately, I have been working out where things go. To help me visualise things better I made another jig from MDF to hold a piece of plastic pipe similar in size to the copper boiler tube. Its slightly larger but thats of no matter I just want something I can use to mount the cylinder on and take measurements from so that I can start to fabricate the crosshead and crankshaft etc.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02828_zpsa1f2aaa3.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02823_zps622c5086.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02825_zps4861318d.jpg)

I have made a temporary piston on a bit of 5/32 rod.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02881_zps6236f4ac.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02886_zps7b2e2d23.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02882_zps6c2f6436.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02885_zps2c00e9f8.jpg)
Title: Re: A portable steam engine
Post by: Firebird on October 13, 2012, 08:16:56 PM
Hi

As you can see I have started to mock up the engine and try to work out where things are going. At a steam fair this year I came across this beautiful little centre engine that had been saved and mounted on wheels.

(http://i242.photobucket.com/albums/ff17/firebird_021/Photo0055.jpg)

I particularly like the type of crosshead. I like the openness of it compared to the usual tube type. I am going to use this type of crosshead on my model.

(http://i242.photobucket.com/albums/ff17/firebird_021/Photo0042.jpg)

I decided to knock one up using aluminium to see how it looks. I have a bit of brass that I will use but i don't have a lot and can't afford to make a cock up.

I haven't bothered with all the detail just the main dimensions. I started by facing off then turning a boss which will have the piston rod gland in it similar to the one I made on the valve chest. I drilled 6 stud holes. A 1/4" slot was milled across and a piece of 1/4" square super glued in. The plan is to make it from brass so I will silver solder that one in.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02904.jpg)

Back in the lathe for a trim up and drill a 5/32 hole for the piston rod.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02906.jpg)

A 3/32" hole is drilled each side and 4 pieces of 1/4" x 1/8" flat bar has a 3/32" hole drilled in each end. A 1/4" square spacer with matching holes for the other end of the bars is drilled.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02914.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02913.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02910.jpg)

It doesn't look too bad. I can see one mod that is required. The bars need to be further away from the head as there is not enough room to get a nut on the studs. Thats easy enough to rectify. I might get time to play around with it some more tomorrow. When I'm happy that it all works I'll make the brass one.

Cheers

Rich

Title: Re: A portable steam engine
Post by: Jasonb on October 13, 2012, 09:03:00 PM
Rich this layout is quite like the one on the portable that was in ME earlier this year, drawings were well off but I did draw it out again, thi smay be of use.

(http://www.model-engineer.co.uk/sites/7/images/member_albums/44290/scan0389.jpg)

J
Title: Re: A portable steam engine
Post by: Firebird on October 14, 2012, 02:23:54 PM
Hi

Thanks for that Jason. The slide bars are T section, I assume fabricated??

I played around with it some more this morning. Starting with some aluminium in the lathe its faced then a boss is turned.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02918.jpg)

Then over to the rotary table in the mill to have the 6 stud holes drilled 3/32" then machine the sides off the boss.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02921.jpg)

Followed by a slot to accept a bit of 1/4" square.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02923.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC02928.jpg)

Thats better, I can now get at all six studs with enough room for the nuts. Also the more room for the gland which will fit vertically on 2 studs as in the photo of the portable above.

Just noticed that I have the 6 stud holes in the wrong place. I have to have them spaced so that a stud is at the 12 o/c and 6 o/c positions with a space between 2 studs at the 3 o/c and 9 o/c positions as in the first attempt otherwise a stud will be right on the steam inlet port of the cylinder. It just needs a bit more refinement before I attack the brass.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Jasonb on October 14, 2012, 04:28:21 PM
Tees can be fabricated or cut from solid, you could also use angle like my Fowler
 
(http://img.photobucket.com/albums/v156/jasonballamy/Fowler%20A7/Rearcylcover.jpg)
Title: Re: A portable steam engine
Post by: arnoldb on October 16, 2012, 07:48:47 PM
Looking good Rich  :ThumbsUp:

With the hole positions needing shifting by 30o relative to the bar in the head, the bolt clearance issue might go away as well, but it will still leave room to work with a small spanner (wrench) to tighten nuts  :)

Kind regards, Arnold 
Title: Re: A portable steam engine
Post by: steamer on October 16, 2012, 11:00:28 PM
That is really coming along beautifully!   I love the details you added to that crosshead!

Dave
Title: Re: A portable steam engine
Post by: Firebird on October 17, 2012, 08:32:25 PM
Hi

Thanks Jason Arnold & Dave.

Progress is pretty slow at the moment, I just don't seem to be getting any shop time. I have to work on Saturday this weekend but Sunday is a day out at the model engineering exhibition at Warwick exhibition centre  ;D ;D ;D ;D lots of boys toys and gadgets and things that will come in handy one day, cant wait.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on December 31, 2012, 02:58:32 PM
Hi

Very little progress on the portable of late, I seem to be spending too much time on tooling projects so today I had a couple of hours on it.

I'm not happy with the mock up of the cylinder cover so today I decided to have another go at it but this time make it in one piece. Again I have used some ally as a practice piece.

First of all the blank was turned to size then had a groove machined with the parting tool.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03216_zps938b7e68.jpg)

Faced and a small boss turned.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03221_zpsa5577e0c.jpg)

Then part off.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03222_zpse04f6317.jpg)

A good opportunity to try out my rotary table with a 4 jaw chuck. After centreing the table under the quill its a fairly easy job to centre the part using a DTI.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03233_zps0094bb35.jpg)

I use DRO's so zero those. I have also got into the habit of zeroing the dials as well, if the battery fails at least I can get back to zero.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03236_zpsa0733174.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03235_zps7932b2b7.jpg)

Machining away some of the waste.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03238_zpsf57cc068.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03241_zps72b218a7.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03246_zps8e5f81c6.jpg)

Drill 6 stud holes

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03248_zps563faac4.jpg)

Drill and tap 2 holes for the piston rod gland.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03249_zps092f2a04.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03252_zps17bffd51.jpg)

Cross drill for the slide bars

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03253_zps398cc874.jpg)

This is how the gland will look. This is actually the gland from the slide valve rod which is a smaller size hole but gives an idea .

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03255_zpsd0098a79.jpg)

The slide bars assembled and tried on the cylinder.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03260_zps84d5f13b.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03262_zps66952dcb.jpg)

Overall much better than previous attempts. It looks better and I now know I can machine it from the solid.

Cheers

Rich

Title: Re: A portable steam engine
Post by: steamer on December 31, 2012, 03:42:52 PM
Thats looking the part Rich!   Well done!

Dave
Title: Re: A portable steam engine
Post by: Bearcar1 on December 31, 2012, 04:21:26 PM
That's pretty sweet, Rich. That piece looks like it "belongs" there and does seem to mimic the full scale version quite nicely.


BC1
Jim
Title: Re: A portable steam engine
Post by: gbritnell on December 31, 2012, 08:40:21 PM
Gee, 4 pages long and it took me this long to find it. I went back to the beginning and followed along. Nice project and great build so far. Your documentation is first rate. I know how much extra time it takes to shoot pics, edit and post so I can certainly appreciate your efforts.
It ought to be a unique stationary power plant when finished.
gbritnell
Title: Re: A portable steam engine
Post by: Firebird on January 01, 2013, 10:04:32 AM
Thanks gentlemen

May I wish all a very happy new year :cheers:

Rich
Title: Re: A portable steam engine
Post by: Firebird on January 27, 2013, 08:31:03 PM
Hi

I have decided to get on and make the cylinder cover in brass now that I know the trial version will work. I need to get this part finished and fitted so I can move onto the next bit. Progress is really slow at the moment I just don't seem to be able to find any shop time :'( :'(

Anyway the following pics show yesterdays work.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03298.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03302.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03303.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03308.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03313.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03315.jpg)

There is quite a bit of cleaning up work to do yet but if I get the cylinder drilled and tapped for the 6 studs I can fit it and then start taking measurements for the next bit.

Cheers

Rich

Title: Re: A portable steam engine
Post by: Firebird on February 10, 2013, 07:21:54 PM
Hi

I spent a couple of hours trying to clean up the brass cylinder cover and didn't get on very well, it looks a bit of a mess. I'm not happy with it  :( :(

So back to the drawing board, well lathe and start again. This time I am fabricating it from 2 parts.

Start by turning, facing and drilling and reaming.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03317_zps80270db5.jpg)

Then using an end mill to bore for the gland. I needn't have bothered doing this op right now as I will be machining it away.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03319_zps0cc84e3f.jpg)

Part off

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03322_zpsfa7d9dd8.jpg)

Set up and centred in the rotary table on the mill. Machine a 1/4" slot.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03329_zps5d5bc0e1.jpg)

Followed by a little shaping.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03330_zpsfc6435a1.jpg)

Drill 6 stud holes.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03332_zpscee34c87.jpg)

Drill and tap 2 holes for the gland studs.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03334_zpseef0a245.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03336_zps4fc0ae4a.jpg)

Cut a piece of 1/4" brass bar.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03337_zps8de78f5f.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03338_zps017ed74b.jpg)

set up in the brazing hearth, flux and add a couple of pieces of silver solder.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03339_zpsf0ee9107.jpg)

After siver soldering.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03341_zps40f0dc0c.jpg)

Its in the pickle now for a clean up. It looks a lot better than the previous version. Next job, when time permits is to put it back in the lathe and machine the face flush again and drill and reamer.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on February 16, 2013, 10:12:07 PM
Hi

To hold the cylinder cover I had to turn a a holder from a bit of ally.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03342_zps6d1305a4.jpg)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03344_zpsb8cfb9fd.jpg)

Make up a couple of clamps, drill and tap the holder 4mm.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03346_zps96d93466.jpg)

Machine the face flat.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03351_zps43f58bac.jpg)

Drill and ream for the piston rod and bore for the gland.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03352_zpsf8c3bd73.jpg)

This is my set up for drilling to depth, a digital calipre mounted on the tail stock.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03353_zps81b39546.jpg)

The gland starts off as a simple turning job then drilled and reamed.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03356_zps1ef44fb1.jpg)

Transferred to the mill and machined to shape.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03359_zps4cc2a942.jpg)

Drill a couple of holes.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03364_zps912e5836.jpg)

Back in the lathe to part off.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03368_zps09a7e6a3.jpg)

Fitted into the cylinder cover and along side the previous attempt. It looks much better.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03369_zpsdd969f9f.jpg)

Cheers

Rich
Title: Re: A portable steam engine
Post by: zeeprogrammer on February 16, 2013, 11:43:16 PM
That does look good Rich.
I'm betting you feel pretty good about now.
Title: Re: A portable steam engine
Post by: Bearcar1 on February 16, 2013, 11:44:35 PM
N I C E !! Looks good,  Rich. You certainly have been busy, making (remaking?) your piece, but the final product sure pays off in spades.  :ThumbsUp:


BC1
Jim
Title: Re: A portable steam engine
Post by: peatoluser on February 17, 2013, 05:55:12 PM
Thoughly enjoying following this build. The thought and skill in producing the crosshead and not compromising by being satisfied with your first effort (I know I would have been)....well I'm definately looking forward to the next instalment!

peter
Title: Re: A portable steam engine
Post by: smfr on February 17, 2013, 06:33:05 PM
I'm also following with interest! I like to see how building up parts often gives more satisfactory results than machining them from solid.

Simon
Title: Re: A portable steam engine
Post by: Firebird on February 17, 2013, 09:22:57 PM
Hi

Thankyou gentlemen. :cheers:

Yes I'm much happier with the latest effort.  ;D

Finding time to get on with it is the problem. I'm currently faced with a kitchen and 2 bedroom rebuild so very little shop time for a while  :(

cheers

Rich
Title: Re: A portable steam engine
Post by: peatoluser on February 18, 2013, 10:08:43 AM
Comiserations on the D.I.Y. projects Rich. Having just worked through a large list of the stuff myself when I would rather be in the shed,I know how you feel. Fortunately for me I think the warden is going to grant me some parole time, so hopefuly it's back to the projects for me!

peter
Title: Re: A portable steam engine
Post by: Firebird on February 24, 2013, 07:56:38 PM
Hi

I had a few hours today while the wife and youngest daughter went to Ikea, not my favourite place and they know it so they left me at home.

A couple of studs for the gland was the first job. I use 3/32 stainless steel for the studs. A 7BA thread goe's nicely on 3/32 and 7BA nuts are a nice size. Where some of the stud shows I like to leave the shank plain, looks better than threaded all the way down. Its a bit fiddly threading each end of a short piece but its worth the effort I think.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03375_zps85cd3a71.jpg)

Now I needed to drill and tap 6 holes, 7BA again, into the cylinder. The mandrel I made when i first machined the ends of the cylinder came in useful again. Here I am centreing it in the 4 jaw.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03379_zpsaa074363.jpg)

The cylinder is dropped onto the mandrel and squared up using this set up. Once square the caphead bolt is tightened to hold the cylinder securely.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03380_zps743fe744.jpg)

The 6 holes can now be drilled and tapped. I use a spring loaded pointer to hold the tap square.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03381_zps82f74fa9.jpg)

6 Studs fitted. This time because there is no part of the stud showing I can cut lengths of threaded 3/32 stainless steel.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03388_zps4964f7de.jpg)

Assembled, not a very good photo I'm afraid.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03393_zpsead1f35a.jpg)

Cheers

Rich

 
Title: Re: A portable steam engine
Post by: Jo on February 24, 2013, 08:05:38 PM
Rich,

When you make your studs, start off by giving the end a slight rounding with a needle file, cut the thread and if necessary give the end another quick lick with the needle file. By doing that you will have a nice smooth finish and not sharp and likely to cut your fingers  :ThumbsUp:

Jo
Title: Re: A portable steam engine
Post by: Firebird on February 24, 2013, 08:51:54 PM
Hi Jo

I should have mentioned that the studs need finishing. On final assembly they will be trimmed to equal length and smoothed over. The 2 gland studs look over long at the moment but when the gland has some packing in it will sit a little higher and each stud will have a locking half nut as well as a full nut.

Cheers

Rich
Title: Re: A portable steam engine
Post by: SandCam on March 01, 2013, 02:41:40 PM
 :D Hi Rich,

You certainly are making some great progress with the new engine... GREAT STUFF :praise2: :ThumbsUp:

Not to sure I like all the enforced D.I.Y though...  :headscratch: :thinking:Have you thought about teaching  :Director:your better half and daughters to do it themselves? :hammerbash: :zap:....

on second thoughts!!! :Lol: :naughty: :Jester:

I Know, and feel your pain, having recently had to do much the same items... such is life.

I am sure you will get through it and get back to the workshop ASAP.

Keep happy.

Best Regards.

Sandy. :cheers:

PS... I would be carefull about drilling too many holes in your boiler before it is soldered up... you will let all the heat out!!! :LittleDevil: :ROFL: :lolb: :lolb:
Title: Re: A portable steam engine
Post by: Firebird on March 01, 2013, 09:36:36 PM
Hi Sandy

Nice to hear from you, thanks for the ongoing support  :ThumbsUp:

I don't want to drift off topic too far here but when one is dealing with the fairer sex, in my experience at least, thats when the problems arise.

For example when I get in from a long day at work I often get  "we have been thinking it would be nice if"  :facepalm: the we in question being my wife and youngest daughter.

An example     we think it would be nice if we get rid of the built in bed in the small room and put the bed out of the middle room in there. My reply was   it won't fit.  How do you know that.   I can tell its too big just by looking at it.   Well lets try it anyway.  Out comes the tape measure.  The gap is 6 foot, the bed is 6 foot 4,  it won't fit.  With all those tools you have surely you can make it fit  :Mad:  :wallbang:

Do I need to go on, I could write volumes  :atcomputer: on their capacity for not understanding things.

Ah well one day it will all be done but then I might be too  :old:

Cheers

Rich
Title: Re: A portable steam engine
Post by: steamboatmodel on March 04, 2013, 01:36:52 AM
Rich,
My Dad told me there are two words to a long and Happy Marriage  "Yes Dear".
As for renovating It is well that they ask you, and don't try to do it themselves and then expect you to wave a magic hammer and make it all right in an afternoon.
Regards,
Gerald.
Title: Re: A portable steam engine
Post by: Bearcar1 on March 04, 2013, 02:16:04 AM
"Do I need to go on, I could write volumes   on their capacity for not understanding things."




Nope. It is in the female genes to question or take the long way around a logical problem. My wife and I returned not 48hrs ago from the dr's office. She had pains in her shoulder, and the doc clearly explained the cause was due to the joint being hyperextended. (when she falls asleep watching TV her head falls way over and she slumps) So, when I suggest she get a pillow and try to straighten herself up a bit (nothing about sleeping, just to relieve the strain on her shoulder) You guessed it, "oh no, I'll be OK when I go to bed" .... YEAH, after you have slept here for about four hours and done nothing to alleviate what the dr stated was the probable cause.  :slap:  *yes dear*

Anyway, your progress with the portable is looking quite good Rich. So. What color are you going to be painting the rooms?  :ROFL:

BC1
Jim
Title: Re: A portable steam engine
Post by: Maryak on March 04, 2013, 05:58:13 AM
A pictures worth 1000 words

(http://i389.photobucket.com/albums/oo340/Maryak/IMG_0326_zpsc5b4d2d9.jpg)

Not to put too fine a point on it, it's twice the size of our old house!!!

Best Regards
Bob
Title: Re: A portable steam engine
Post by: Firebird on March 04, 2013, 10:06:04 PM
Hi

I got the "yes dear" bit off to a T Gerald  :praise2:

What ever colour she wants Jim, I don't pick paint or wallpaper  :shrug:

But you ain't got no wall to decorate Bob  :headscratch:

Cheers

Rich
Title: Re: A portable steam engine
Post by: SandCam on March 04, 2013, 11:12:06 PM
 ;D

What have I started? :facepalm:

Quote
What ever colour she wants Jim, I don't pick paint or wallpaper 


The only problem with that is when what she picked ends up not looking right... :rant: :cussing:

and somehow it's your fault... :headscratch: :Doh:

Keep happy.

Sandy. :cheers:... I'll get me coat.
Title: Re: A portable steam engine
Post by: Firebird on March 05, 2013, 08:17:40 PM
Hi

Oh without any doubt it will all be my fault  ::)

Cheers

Rich
Title: Re: A portable steam engine
Post by: Jo on March 05, 2013, 08:25:19 PM
What I cannot understand is why with all these complaints about living with the fairer sex, you lot are still married  :shrug:.

Jo
Title: Re: A portable steam engine
Post by: Bearcar1 on March 05, 2013, 08:41:43 PM
1) true love


2) is completely insane


3) just too stupid to know any better


4) can't cook for crap


Oh there a LOT of reasons, but these are probably at the top of the list


 :slap:  *yes dear*




BC1
Jim
Title: Re: A portable steam engine
Post by: oldbcca on March 22, 2013, 09:14:46 PM
Hi Rich

Just picked up on your project and got myself registered.

I am very interested and wonder if you have any drawings or ideas for size and scale for the engine.

Am a member of the local model engineering society in Northern Ireland (MESNI) and would be most interested in building something similar.

Yours thoughts would be appreciated.

Regards

George Ross
Title: Re: A portable steam engine
Post by: Jo on March 23, 2013, 07:06:46 AM
 :hi: George,

Any chance of putting an introduction about yourself in the introduction section.

Jo
Title: Re: A portable steam engine
Post by: oldbcca on March 24, 2013, 10:58:45 AM
Hi Jo,

Thank you for the welcome.

I have posted basic info on profile page.

Regards

George
Title: Re: A portable steam engine
Post by: Jo on March 24, 2013, 12:39:27 PM
George, I did mean the introduction section, to let us know a bit about what you are interested in making, workshop etc. There may be other Forum members who are interested in the same things etc.

Jo
Title: Re: A portable steam engine
Post by: Jasonb on March 24, 2013, 12:54:29 PM
As Rich says in the first post the engine is loosly based on John Hainings 2" Sissons Portable, drawings for which were published in Model Engineer and just modified to what Rich has to hand.

J
Title: Re: A portable steam engine
Post by: SandCam on March 24, 2013, 01:40:14 PM
Hi George, and welcome to the club.

Since it may be some time before Rich can respond (he is otherwise occupied with some domestic refurbishments) I am sure he won't take offence at my providing some basic info regarding his latest venture.

I do know that there are no specific plans available for this project but can say that it is based (as a start point) on a design for a 'Sissons portable engine' originally published in Model Engineer (vol 183 and 184) from August 1999.

These original drawing were used only as a rough guide for basic layout but have been extensively modified in order to utilise Rich's available materials and also to eliminate the requirement to purchase castings. A further requirement was to cater for Coal Firing (I believe the original was either gas fired or blowlamp fired) which required considerable changes being made to the design of the boiler. (I was personally involved in helping Rich with some of this re-design work).
The cylinder and valve arrangement have also been completely revised.

As such, most of what Rich has posted to date, reflects strictly a one off type of construction and I doubt anything more than brief sketches have been made for each item (But I could be wrong).
Quite a lot of us work this way... just keeping sketches and critical dimensions in a project notebook or somesuch.

I hope this gives you somewhere to start from.

Best regards.

SandyC :cheers:

PS... If you get a moment it would help all of us here to be better able to give advice to you if you could post a short introduction in the 'Introductions' section giving your experience, preferred types of models, equipment available to you etc. I see you have given some very brief details of yourself in your profile, however, these do not give much detail as to your preferences, experience etc. :ThumbsUp:
 

EDIT... Ha ... Jason beat me to it with the original reference... must type faster.
Title: Re: A portable steam engine
Post by: Bearcar1 on March 24, 2013, 03:47:21 PM
EDIT... Ha ... Jason beat me to it with the original reference... must type faster.






Nah, he just uses two fingers     :cheers:




BC1
Jim
Title: Re: A portable steam engine
Post by: Firebird on March 26, 2013, 10:02:02 PM
Hi George, welcome

I think Sandy and Jason have covered just about everthing I could say about this project  :ThumbsUp: It will be a long haul.

It is a one off loosely based on the Sissons portable, a rare little beast, but hopefully within my current skill level.

Sandy has been of considerable help with the design  :cheers: and I'm sure I will have to call on him many more times.

Unfortunately decorating season is upon me  :'( so progress is slow at the moment but summer is just around the corner, if we get a summer this year  :shrug:

Cheers

Rich

Title: Re: A portable steam engine
Post by: oldbcca on March 27, 2013, 06:16:10 PM
Thank you Rich,

I appreciate your comments and will try to keep up with you as regards progress. Must see if I can find copies of the Model Engineer relating to the Sisson,s portable.

Good luck with the decorating and the thought of summer.

Best regards

George
Title: Re: A portable steam engine
Post by: Firebird on July 06, 2013, 08:08:08 PM
Hi

well it seems like an eternity since I had any decent shop time  :'( but today I had the afternoon to myself  :whoohoo:

I spent a couple of hours cleaning and oiling then got to make some chips.

I made the front cover for the cylinder, a simple turning job that doesn't really require a lot of explanation.

A piece of brass in the lathe turned and profiled to give a little shape. Note I am using my home made tangential cutter and tool holder.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03442_zpsf8ce79d2.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03442_zpsf8ce79d2.jpg.html)

Over to the mill and set up in the rotary table to drill 6 holes. The table has a 4 jaw independant chuck mounted described in another topic on this forum. A mod well worth doing.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03447_zps84cdd963.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03447_zps84cdd963.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03448_zps272b5788.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03448_zps272b5788.jpg.html)

Back in the lathe to part off.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03453_zps95842b74.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03453_zps95842b74.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03458_zps8f196d46.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03458_zps8f196d46.jpg.html)

On the engine with a couple of temporary studs.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03463_zpse37d2187.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03463_zpse37d2187.jpg.html)

Its such a pleasure to actually make something as simple as it is.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Tennessee Whiskey on July 06, 2013, 09:28:55 PM
Rich, when you make a part that looks that good and it fits; it's not simple, just well made. :cheers:

Eric
Title: Re: A portable steam engine
Post by: SandCam on July 06, 2013, 11:14:03 PM
 :whoohoo:

Hi Rich,

Good to see you back in the land of Muck and Bullets.

Hope all the DIY went as planned and family are enjoying all your hard labour.

That tangential tool certainly performs very well... pretty easy to sharpen as well.

One question... if the tangent tool is used for taking stuff off... how about a co-tangent tool for putting back the bits you didn't mean to take off.? :thinking: :ROFL: :lolb:

I'll get me coat. :cheers:

Keep happy.

Sandy.
Title: Re: A portable steam engine
Post by: Firebird on July 07, 2013, 08:38:51 AM
Hi

Thanks Eric :ThumbsUp:

Sandy, yes great to get out and make something again.

As for the DIY well its about done for this session anyway. What took me so long, allow me to amplify a little. We have largish white tiles in our kitchen with white grout. My good lady decided she would like to keep the white tiles but have black grout :thinking: She no doubt saw this on one of those programmes where they build a new house out of MDF baked bean tins and emulsion in less than half an hour ::) Who am I to argue. So first job was to rake out all the white grout, many nights and weekends later I'm ready to put black grout back in. This stuff ain't very forgiving as I soon found out, It gets everywhere and I mean everywhere. Whereas white grout on white tiles doesn't show this stuff does including every minute scratch in the surface of the tiles. It was a case of put a little in and clean before it dries, what a job. Now its done I must admit it looks good but it was a never ending job, DON'T TRY THIS AT HOME :hellno: :hellno:

Co tangent, now that would be a tool worth making :lolb:

And a rare treat today me and my mate Julian are off to Elvaston Castle steam fair. Excellent. We will have to manage with burgers n beer for our Sunday lunch  :DrinkPint:

Cheers

Rich
Title: A portable steam engine
Post by: NickG on July 07, 2013, 09:40:32 AM
Good to see you back on this Rich. Really must get my rotary table set up as I have cylinder and covers coming up soon! Can't be messing on like I usually do!
Title: Re: A portable steam engine
Post by: steamer on July 07, 2013, 11:31:55 AM
Burgers and beer doesn't sound so bad when you wash it down with a steam fair!....Glad your back at it, and not pushing a grout float around...that's one of those jobs I don't ever want to do again... :hellno:


Dave
Title: Re: A portable steam engine
Post by: Jo on July 07, 2013, 12:24:53 PM
Could you not have just dyed the old grout?  :noidea:

Decorating, tilling, moving house, moving workshop  :hellno: I'm with you Dave: never again  :ThumbsUp:

You can keep the burgers, a nice ice cold cider  ;) is what you want with a steam fair, especially if you are playing with a ploughing engine  :Love:. Looking forward to some photo's Rich  ;D

Jo
Title: Re: A portable steam engine
Post by: Firebird on July 07, 2013, 07:33:03 PM
Hi

What a beautiful day, hottest of the year and perfect steam fair weather. The burger and beer went down well :DrinkPint:

Not many photos taken I'm afraid I didn't take my camera just my phone. but This little centre engine was more than worthy of a couple of snaps. It was saved and restored by the owner and mounted on wheels.

(http://i242.photobucket.com/albums/ff17/firebird_021/20130707_153550_zps580eb472.jpg) (http://s242.photobucket.com/user/firebird_021/media/20130707_153550_zps580eb472.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/20130707_153629_zps522d9b7e.jpg) (http://s242.photobucket.com/user/firebird_021/media/20130707_153629_zps522d9b7e.jpg.html)

Thats Julian in the background

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on July 28, 2013, 04:29:45 PM
Hi

A few hours on the model today. I need to make the bit that supports the slide bars, the bit thats painted white in the above photos. I'm sure it must have a proper name but not one that I know. I like the look of the open type slide bars as against the the tube type.

I found a bit of scrap 5/16 thick steel plate to use. Its got a few weld marks here and there but enough good material for what I need. I heard somebody say inside every bit of old metal is a new piece waiting to come out, might have been Bogs?

Anyway in the mill to square up the edges.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03531_zps9fc349c1.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03531_zps9fc349c1.jpg.html)

Drill a couple of 1/4" holes 1/2" apart.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03534_zps2e984135.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03534_zps2e984135.jpg.html)

Join up the holes with a 1/4" cutter.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03536_zpscc1db126.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03536_zpscc1db126.jpg.html)

Its then a case of machining away till it starts to appear.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03539_zps274ab312.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03539_zps274ab312.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03540_zpsc07f201a.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03540_zpsc07f201a.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03558_zpsb15c12ea.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03558_zpsb15c12ea.jpg.html)

This is what it looks like so far next to a picture of the original.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03549_zps749f2eb5.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03549_zps749f2eb5.jpg.html)

At this point I got distracted again. I have DRO's on the X and Y axis, they are the best thing I ever fitted. The X1 mill does have a fine feed on the quill but I don't get on very well with it. I much prefer to keep the quill clamp bolt tightened and feed with the Z axis. I have for a long time cobbled a pair of 6" calipres on the job but its far from ideal.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03552_zps758defee.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03552_zps758defee.jpg.html)

The DRO that was on the X axis had a problem with the remote readout plug so I replaced it with a new one that has the remote readout wired in. I have fitted the old one to the Z axis. Much better having one permanently fitted. It won't work with one of the remote readouts but I can see it ok. You can see I'm using a digital angle guage to line it up with the column.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03554_zpsa95f5c8e.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03554_zpsa95f5c8e.jpg.html)

Cheers

Rich
Title: Re: A portable steam engine
Post by: Bearcar1 on July 28, 2013, 06:42:56 PM
WoW! Some beautiful work Rich. Nice and clean. I'm still following along and enjoying every bit of it.


BC1
Jim
Title: Re: A portable steam engine
Post by: NickG on August 02, 2013, 11:23:38 PM
Good stuff Rich, nearly missed the update as tapatalk sometimes lets things slip through! Nice work with the DRO, I've got one sat on shelf from xmas waiting to be fitted!
Title: Re: A portable steam engine
Post by: Firebird on August 11, 2013, 09:11:26 AM
Hi Jim & Nick

Sorry for the slow reply I have just got back from the family holiday, very ehausting. 2 of my 3 daughters came along (they are 19 and 32) and a grand daughter she's 3. At what point I wonder do the kids stop tagging along  :thinking: It was great fun though.

Cheers

Rich
Title: Re: A portable steam engine
Post by: sco on August 11, 2013, 11:13:15 AM
Drill a couple of 1/4" holes 1/2" apart.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03534_zps2e984135.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03534_zps2e984135.jpg.html)



I can't teach you guys much but I've noticed this several times on other peoples posts as well (even Jo)- I think this picture demonstrates the wrong way to clamp something down to the mill table.  The studs should be up as close to the vice as possible so that the stud load is going into clamping the vice down, not into clamping the packing pieces!

Apart from that nice work!

Simon.
Title: Re: A portable steam engine
Post by: Jo on August 11, 2013, 11:26:19 AM

.... but I've noticed this several times on other peoples posts as well (even Jo)- I think this picture demonstrates the wrong way to clamp something down to the mill table.  The studs should be up as close to the vice as possible so that the stud load is going into clamping the vice down, not into clamping the packing pieces!

I agree mounting bolts as close as possible to the work but I think I know which of my pictures you are referring to. Sometimes it is necessary to put the bolts further back to allow clearance for the tool or the tool holder. The number of times I have caught the top of the clamping bolts with my autolock when using small milling cutters :facepalm2:

Jo
Title: Re: A portable steam engine
Post by: sco on August 11, 2013, 11:33:01 AM
Jo it was this picture I think;

(http://i214.photobucket.com/albums/cc12/jothoms/R%20and%20B/IMG_2372_zps2cd4bd01.jpg)

Which to be fair is when you are drilling something so no side load so not so critical  ;)

Simon.
Title: Re: A portable steam engine
Post by: Jasonb on August 11, 2013, 04:24:00 PM
And lets face it Jo would not be using thumb turn nuts if she was trying to hold things tight.

If you do have a clash with the nuts being too close then rather than move them away switch to a longer hold down so that when the nuts are moved further away they will still be proportionally closer to the work than packing.
Title: Re: A portable steam engine
Post by: Firebird on August 11, 2013, 09:24:11 PM
Hi

Advise duly noted  :ThumbsUp:

Cheers

Rich
Title: Re: A portable steam engine
Post by: k11gmh on August 22, 2013, 08:56:36 PM
Just thought I would add my comments to wonderful piece of work with regard to the Sissons Portable engine an unusual design. For all those people that are interested here at Brunell Steam Model Engineering we have castings available on the shelf along with drawings also can supply a boiler kit which is being updated at the moment.
We have stocked the castings for many years as John Haining stated in the start of the project back in July 1999, but over the last twelve months we have sold three sets of castings as interest in portable engines has grown. On the starting blocks is another portable engine the Orcup Yeoman in 4" scale just working on boiler approval but we have drawing available now you can contact us on 01283 499211 day or night
    Regards  Graham     Brunell Steam Model Engineering
Title: Re: A portable steam engine
Post by: Bearcar1 on August 22, 2013, 11:08:48 PM
I'd like to think that perhaps some of that new found interest might have been fueled by builds such as Rich has going here. Good work Rich, when can we see the next installment?


BC1
Jim




Title: Re: A portable steam engine
Post by: Firebird on August 23, 2013, 10:13:54 PM
Hi

Thanks Graham and Jim.

The next installment  :noidea: soon I hope. I really am struggling to get some decent shop time at the moment. Domestic duties, holidays etc, my young son in law having to have a leg amputated, thats a long story, grand children, work  :wallbang: :wallbang: Anyway I do get to pinch the odd half hour here and there but with a project like this a lot of thinking and working out has to be done before I can make a few chips. The dark nights are fast approaching though so a bit more shop time is just around the corner I hope.

cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on August 24, 2013, 08:18:15 PM
Hi

The machined part has been cut from the parent material

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03571_zps31f677df.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03571_zps31f677df.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03574_zps1810074a.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03574_zps1810074a.jpg.html)

To make the saddle part I have bent a bit of steel using the steel tube I turned earlier from which the cylinder saddle is cut. It's machined to the same diameter as the boiler barrel.

Set up in the press using a bit of round steel, its not quite big enough but is the largest bit I have.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03560_zpse1448849.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03560_zpse1448849.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03561_zps7eff4601.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03561_zps7eff4601.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03567_zps4022e87e.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03567_zps4022e87e.jpg.html)

Not too bad, its way over size at the moment I'll cut it down to size when the all the parts are soldered together

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03570_zpsaf1630e2.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03570_zpsaf1630e2.jpg.html)

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on August 26, 2013, 08:10:21 PM
Hi

Today was one of those rare days. The powers that be granted me a day in the workshop.   :whoohoo:

Its just what I needed to get on with the model a bit. I have been struggling with this part for a while, not quite sure what to do next and with only half hour here and there getting nowhere. Its a tricky little so and so as its not mounted centrally on the boiler but slightly to one side so getting it right was a bit of a job. With a good few hours solitude things have progressed nicely.

In the mill to machine to size and square up.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03590_zpsb0d2618a.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03590_zpsb0d2618a.jpg.html)

I keep laying the parts on the picture, it helps to visualise what to do next.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03594_zpse8596823.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03594_zpse8596823.jpg.html)

square up in the mill vise.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03599_zps89d09984.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03599_zps89d09984.jpg.html)

Using a wiggler to find the 2 edges.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03604_zpsdeca56ca.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03604_zpsdeca56ca.jpg.html)

Centre drill.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03607_zpsd738f687.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03607_zpsd738f687.jpg.html)

Mount in the 4 jaw and use a DTI and spring loaded centre to centralise.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03612_zpse7c10804.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03612_zpse7c10804.jpg.html)

Turn the central part with a rear mounted parting tool.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03615_zps01832df2.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03615_zps01832df2.jpg.html)

After a bit of hacksawing and filing.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03616_zpsbf382393.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03616_zpsbf382393.jpg.html)

Make a couple of filing buttons

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03623_zpsf3395d36.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03623_zpsf3395d36.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03626_zpsfbf1dc57.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03626_zpsfbf1dc57.jpg.html)

I like to grind the teeth from one edge of some of my files to give a safe edge that won't mark the work.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03629_zps5ad49334.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03629_zps5ad49334.jpg.html)

Then file away.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03631_zps50fc04d3.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03631_zps50fc04d3.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03635_zps4e2d345c.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03635_zps4e2d345c.jpg.html)

Back in the mill vise, square up and edge find with a wiggler and centre drill 2.5mm.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03638_zpsa32223d6.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03638_zpsa32223d6.jpg.html)

How about this for a set up then. I had to get the saddle part mounted so that I could drill a 3mm hole and counter sink at the correct angle.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03641_zps12fbfe9d.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03641_zps12fbfe9d.jpg.html)

Tap 3mm with the help of a spring loaded tap guide.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03644_zps35d45c62.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03644_zps35d45c62.jpg.html)

Fit together with a 3mm countersunk cap head screw.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03647_zpsc267790b.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03647_zpsc267790b.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03648_zps60b217b8.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03648_zps60b217b8.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03650_zps2c3989bb.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03650_zps2c3989bb.jpg.html)

Looks good, I'm happy with that.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03652_zpsc789daf1.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03652_zpsc789daf1.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03654_zps0cff23a8.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03654_zps0cff23a8.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03658_zps23ad01f3.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03658_zps23ad01f3.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC03655_zpsb73b3f94.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC03655_zpsb73b3f94.jpg.html)

I might silver solder the two parts together at a later date but its pretty solid with just the screw. Slight adjustments to height can be made with shims now on final assembly.

Cheers

Rich



 
Title: Re: A portable steam engine
Post by: Stilldrillin on October 21, 2013, 08:56:26 PM
"Looks good, I'm happy with that".

So you should be, Rich!  :o

Showing some crackin' setups, with a neat n tidy outcome.  :whoohoo:

Well done!  :praise2:

David D
Title: Re: A portable steam engine
Post by: Firebird on October 21, 2013, 09:04:26 PM
Thanks Dave.

I haven't been doing a lot on this model recently. I tend to drift off in different directions when something new takes my interest. At the moment I'm busy building a 7" rotary table. I'll get back on it soon.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Pete49 on October 22, 2013, 03:25:12 AM
I haven't been doing a lot on this model recently. I tend to drift off in different directions when something new takes my interest. At the moment I'm busy building a 7" rotary table. I'll get back on it soon.
Sounds a lot like me  :embarassed: but then I like diversity. Really liked the set ups very innovative and now committed to memory eerr paper. Memory not what it used to be. Looking forward to the finished and running model
Pete
Title: Re: A portable steam engine
Post by: Firebird on February 14, 2015, 08:55:29 PM
Hi

Can you believe its over a year since I last posted any progress on this project. I told you I tend to drift off a bit. Add on the domestic duties and 2 grand daughters who always want to help and time just flies.

Anyway I'm back on it for a while. Today I started to make the slide bars for the engine. I needed some 1/4 x 1/4 steel but of course I didn't have any so had to bring some 1/4 x 3/8 down to size and 3" long

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05113_zpstodmfeqd.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05113_zpstodmfeqd.jpg.html)

Followed by some 3/32 holes.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05119_zps1jypq0hs.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05119_zps1jypq0hs.jpg.html)

Machine a step on each end.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05126_zpsfwxwyerv.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05126_zpsfwxwyerv.jpg.html)

Prepare a bit of scrap ally with matching holes.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05131_zpsndk0ykpg.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05131_zpsndk0ykpg.jpg.html)

Bolt the bars onto the ally.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05134_zpspo6ylrrr.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05134_zpspo6ylrrr.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05137_zpsah16z0xj.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05137_zpsah16z0xj.jpg.html)

Mount in the mill at an angle of 7°

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05139_zpsnentccc9.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05139_zpsnentccc9.jpg.html)

Machine one side.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05140_zpsy7d2brba.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05140_zpsy7d2brba.jpg.html)

Re mount and machine the other side.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05146_zpsauaj38pk.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05146_zpsauaj38pk.jpg.html)

Two of the bars, the two that will be the top ones, are drilled and tapped 5/32 x 40 to take oil cups.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05152_zps3j8u9ggy.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05152_zps3j8u9ggy.jpg.html)

After a bit of a clean up they look ok.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05153_zps2n1a3fsa.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05153_zps2n1a3fsa.jpg.html)

It feels good to be back making chips on the model again.  :whoohoo:

Cheers

Rich



 
Title: Re: A portable steam engine
Post by: Roger B on February 14, 2015, 09:01:52 PM
 :ThumbsUp:  :ThumbsUp:
Title: Re: A portable steam engine
Post by: Stilldrillin on February 14, 2015, 10:44:18 PM
Hi Rich.

It's nice to see some more, positive progress......  (http://freesmileyface.net/smiley/respect/respect-048.gif) (http://freesmileyface.net/free-respect-smileys.html)

David D
Title: Re: A portable steam engine
Post by: Bearcar1 on February 15, 2015, 03:11:56 AM
Way to go Rich!!! I was sort of wondering what had happened to this build. NICELY done…..  :ThumbsUp: :ThumbsUp:


BC1
Jim
Title: Re: A portable steam engine
Post by: joe d on February 15, 2015, 03:20:30 AM
Hi Rich

Good to see you back at this!  Looking forward to more, I've enjoyed following along to date.

Cheers, Joe
Title: Re: A portable steam engine
Post by: Firebird on February 15, 2015, 03:04:44 PM
Hi

Thankyou its good to be working on the model again :ThumbsUp:

A couple of hours today saw the slide bars fitted.

Drill 2 holes in the cylinder cover.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05163_zpsynviexa6.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05163_zpsynviexa6.jpg.html)

2 holes in the slide bar support.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05165_zps74rscxqz.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05165_zps74rscxqz.jpg.html)

Fitted together.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05171_zpsmppakrnn.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05171_zpsmppakrnn.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05180_zpshtcms8ni.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05180_zpshtcms8ni.jpg.html)

I couldn't resist a quick mock up.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05186_zpszrorb4oi.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05186_zpszrorb4oi.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05185_zpsa1d2d02t.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05185_zpsa1d2d02t.jpg.html)

Finally today a few quick sketches of sizes for the slidy up and down thingy bit, I forget the name of it  :old: :noidea: I have a piece of cintered bronze that will be used for this bit.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05189_zpsphzrzel3.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05189_zpsphzrzel3.jpg.html)

Cheers

Rich

Title: Re: A portable steam engine
Post by: Jasonb on February 15, 2015, 04:17:48 PM
Good to see you back on this one, its the crosshead BTW.

J
Title: Re: A portable steam engine
Post by: Firebird on February 15, 2015, 06:48:40 PM
Hi

Thats it  :facepalm: The crosshead, thanks Jason :ThumbsUp:

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on February 22, 2015, 03:01:34 PM
Hi

Ok the crosshead slidy up and down thingy bit  :lolb:

This is a photo of a centre engine, the one I modelled the slide bars on. I think trying to make a crosshead similar to this will result in too many small fiddly bits.

(http://i242.photobucket.com/albums/ff17/firebird_021/Photo0052_zpssqbcrtrf.jpg) (http://s242.photobucket.com/user/firebird_021/media/Photo0052_zpssqbcrtrf.jpg.html)

So I decided to try and make the crosshead all in one piece but before I trash some valuable bronze I had a go with a bit of scrap ally.

After cutting and machining roughly to shape its mounted and centred in the 4 jaw.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05190_zpszgpacvft.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05190_zpszgpacvft.jpg.html)

The spigot turned then drilled and tapped

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05192_zpshjhkw9uo.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05192_zpshjhkw9uo.jpg.html)

Back in the mill to have the sides machined

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05196_zpsim2crsum.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05196_zpsim2crsum.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05202_zpsphqwj8nw.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05202_zpsphqwj8nw.jpg.html)

set up in the 4 jaw again, cross drill and reamer 3/16

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05212_zpsphsridj3.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05212_zpsphsridj3.jpg.html)

Back to the mill and machine the centre

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05215_zpsinxzwtvp.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05215_zpsinxzwtvp.jpg.html)

A rough connecting rod from another piece of scrap ally and assemble.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05226_zpsfcuazi2w.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05226_zpsfcuazi2w.jpg.html)

A bit of video.

0wUeZoSKvRY
it seems to fit and work ok so i'll have a go with the bronze next

Cheers

Rich


Title: Re: A portable steam engine
Post by: Firebird on February 28, 2015, 09:32:13 PM
Hi

The test crosshead in ally seemed to work ok so I have started to attack the bronze. The procedure is exactly the same as previously described but I have used a round profiling tool this time to give a little shape.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05231_zpsyqdjjmb0.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05231_zpsyqdjjmb0.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05237_zpszcumicqi.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05237_zpszcumicqi.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05239_zpsuihmowz3.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05239_zpsuihmowz3.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05241_zps4dhchvrp.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05241_zps4dhchvrp.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05242_zpsnurtlnlb.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05242_zpsnurtlnlb.jpg.html)

Its taking shape, i might get a little more done tomorrow.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on March 01, 2015, 06:12:34 PM
Hi

A bit more turning, machining, drilling and reaming.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05245_zpshsyib1io.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05245_zpshsyib1io.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05248_zpscbkvt6dh.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05248_zpscbkvt6dh.jpg.html)

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on March 10, 2015, 08:58:29 PM
Hi

I need to make a start on fabricating the crank supports. I always start by having a look round at what I have in stock. My search yielded a couple of small bearings, 14mm OD, 8mm ID and 4mm wide. Not sure yet whether or not this will be used , I'll see what it turns out like.

Start with a bit of 1" x 1/4" steel set up in the mill vise. Drill 2 holes tapping size for 1/8 whitworth (1/8 X 40)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05267_zpscgqp3r2d.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05267_zpscgqp3r2d.jpg.html)

Cut a piece off in the bandsaw and clean up

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05269_zpstkatzjdf.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05269_zpstkatzjdf.jpg.html)

Tap the bottom half and drill the top half clearance for 1/8 and bolt together

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05275_zpsu8yuitp7.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05275_zpsu8yuitp7.jpg.html)

Set up in the mill vise again and accurately find the centre and centre drill.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05280_zpsq5bb3ygz.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05280_zpsq5bb3ygz.jpg.html)

Now set up and centre in the 4 jaw using a DTI and spring loaded centre

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05282_zpsefu7tkju.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05282_zpsefu7tkju.jpg.html)

Bore out to 14mm X 4mm deep leaving a shoulder for the bearing to push up to

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05293_zps8vyrx4x1.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05293_zps8vyrx4x1.jpg.html)

The bearing fitted

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05302_zps5yrma8xc.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05302_zps5yrma8xc.jpg.html)

The parts so far

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05303_zpsymchv8et.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05303_zpsymchv8et.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05309_zpsczbwtkrj.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05309_zpsczbwtkrj.jpg.html)

I need to make another one now. Because the crank mounting sits slightly to one side of the boiler one of the mountings is longer than the other. Theres still a good bit of machining and fabricating to do but its taking shape.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on March 14, 2015, 08:56:25 PM
Hi

I have made the shorter one

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05312_zpsnt6xc6ub.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05312_zpsnt6xc6ub.jpg.html)

I have turned a spacer which is also drilled and tapped 6mm each end

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05314_zpsh7647p7h.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05314_zpsh7647p7h.jpg.html)

It will hold the two brackets securely while I figure out how much to machine off each.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05315_zpsauoot0oe.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05315_zpsauoot0oe.jpg.html)

Cheers

Rich
Title: Re: A portable steam engine
Post by: Roger B on March 20, 2015, 06:42:03 PM
How are you planning to shape the two bearing supports, flycutting?
Title: Re: A portable steam engine
Post by: Firebird on March 20, 2015, 09:47:19 PM
Hi Roger

Not sure yet.  :noidea:  I think I need to make the saddle part next then look at it. This is pretty much a make it up as I go along project.

Cheers

Rich
Title: Re: A portable steam engine
Post by: NickG on April 15, 2015, 07:18:17 PM
Really looking the part this Rich. I'd missed the updates by only using tapatalk!
Title: Re: A portable steam engine
Post by: Firebird on April 15, 2015, 08:41:53 PM
Hi Nick

Thanks, I haven't done anything for the last couple of weeks, I have been away on holiday on a cruise. I went out to the workshop tonight and was greeted with the horrrible sight of red stuff all over my machines.  :'(  I keep them well oiled but the damn stuff still attacks   :facepalm:  I spent a couple of hours cleaning them down, they look better now  :) I may get a couple of hours at the weekend to do a bit.

Cheers

Rich   
Title: Re: A portable steam engine
Post by: Bearcar1 on April 18, 2015, 04:26:53 PM
Howdy Rich, I just wanted you to know that I have been following along silently since you started this project, I have always admired your approach and really enjoy the photos of WIP as I am sure many others do as well. I, being a gentleman just wanted to vocalize my appreciation for what you have done so far…….  :popcorn: :ThumbsUp: :ThumbsUp: :ThumbsUp:


BC1
Jim
Title: Re: A portable steam engine
Post by: Firebird on April 19, 2015, 09:01:45 AM
Hi Jim, thanks for the encouragement  :ThumbsUp:

The powers that be have granted me a few hours shed time this morning  :whoohoo: so I'll be out there shortly. I hope some progress will be made. Sometimes I find it hard to get on with the job when only a few hours are available. By the time I have had a quick tidy up, found the bits and pieces from last time and got my brain in gear  :old: its almost time to come in  :shrug:
 Anyway I'll report back later

Cheers

Rich
Title: Re: A portable steam engine
Post by: mike mott on April 19, 2015, 03:26:00 PM
Hi Rich I like all the creative thinking that you have embodied into this build so far.

Mike
Title: Re: A portable steam engine
Post by: Firebird on April 19, 2015, 05:49:49 PM
Hi

Thanks Mike

Well I had a good session today with progress being made. Firstly I shaped a bit of 1" x 1/8 steel in the press to make the saddle part.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05327_zpsouzwhcg9.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05327_zpsouzwhcg9.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05330_zpsjtaguher.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05330_zpsjtaguher.jpg.html)

After about half an hour of trying to work out how to machine the 2 crank supports  :thinking: I through caution to the wind (maths not being my strong point) and chopped a bit off both in the bandsaw and then machined away a bit at a time until it looked right.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05335_zpslb60wmuk.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05335_zpslb60wmuk.jpg.html)

Then clamped together in the brazing hearth with flux and a couple of lengths of silver solder

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05337_zps08r0htia.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05337_zps08r0htia.jpg.html)

Still glowing red after brazing

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05339_zps8c83em81.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05339_zps8c83em81.jpg.html)

A trial fit

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05350_zpsoqdaoxfu.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05350_zpsoqdaoxfu.jpg.html)

And with the bearings fitted and a bit of 8mm steel rod

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05355_zpswhdfagbw.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05355_zpswhdfagbw.jpg.html)

I decided to knock up a crankshaft , not the final one I will use. 2 bits of 1/4 x 1/2 steel bar with 8mm holes drilled at 1/2" centres to give a stroke of 1"

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05356_zpspcw3aen0.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05356_zpspcw3aen0.jpg.html)

Drill and pin with some 3/32 stainless steel rod and super glue together.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05359_zpsvhkjbgxq.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05359_zpsvhkjbgxq.jpg.html)

Then cut out the waste.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05360_zps2okbyx11.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05360_zps2okbyx11.jpg.html)

Fitted into the crank bracket

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05363_zpsziiwthkf.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05363_zpsziiwthkf.jpg.html)

That'll do. I am going to make some little webs for the crank bracket which I will probably just glue in to give it a casting look. Then fill in and smooth the corners with JB weld.

Cheers

Rich








Title: Re: A portable steam engine
Post by: Firebird on April 26, 2015, 01:47:50 PM
Hi

Drilling holes is easy :Lol: Drilling holes in the right place at the right angle, now thats more of a challenge  :noidea: :thinking:. I needed to drill the mounting holes in the crank support and the slide bar support. This ended up as a mornings work. The holes have to be in the right place obviously but the also have to be at 90° to the curved saddles. I ended up mounting a bit of steel tube the same size as the boiler tube in the rotary table and clamping the work piece to this. the following photos show this. Note I am using my digital readouts bluetoothed to my phone.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05384_zpssngdsmw5.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05384_zpssngdsmw5.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05388_zpsoiyeix45.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05388_zpsoiyeix45.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05380_zpsaf0dhfzw.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05380_zpsaf0dhfzw.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05382_zpspcipb1qx.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05382_zpspcipb1qx.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05381_zpsl1ypcmvp.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05381_zpsl1ypcmvp.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05390_zpsu8ksk1fg.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05390_zpsu8ksk1fg.jpg.html)

Cheers

Rich



Title: Re: A portable steam engine
Post by: mike mott on April 26, 2015, 02:20:28 PM
Those turned out really well, Alexander would be amazed also.

Mike
Title: Re: A portable steam engine
Post by: Firebird on May 03, 2015, 08:27:57 PM
Hi

Thanks Mike.

Today I bolted 3 components to the boiler, the cylinder, the slide bar support and the crank mounting. It doesn't look like much but this took a couple of hours. I needed to know that the 3 components would line up ok. I used a digital angle guage to help.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05410_zpsoxhycwbu.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05410_zpsoxhycwbu.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05409_zpsk0bdakpw.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05409_zpsk0bdakpw.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05406_zpsghnvkfjh.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05406_zpsghnvkfjh.jpg.html)

I'm happy with that. As you can see I had to use some card shims to get things true but at least I know it will all work.

I sorted out a bit of 5/8 X 1/4 steel bar to make the con rod and started to cut a piece off in my trusty old bandsaw when disaster struck. A loud bang and a broken blade. I have had blades break before but this time it sounded more serious. After a closer inspection the problem was found. The cast iron bracket that holds 3 blade guide bearings had broken into 3 pieces.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05404_zpssir1rcqe.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05404_zpssir1rcqe.jpg.html)

This is the part, I have placed all 3 bits together but trust me its in pieces. Trying to source spares for old chinese machines isn't easy but I have sent a couple of e mails out to suppliers of these machines so i will have to wait and see. I have got to fix it somehow.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Don1966 on May 03, 2015, 10:59:51 PM
Hi Rich, I have been following you quietly on your interesting engine built. Bad news about the band saw, but have you looked at Carter tools they carry replacement for bandsaws or more like enhancements.
http://www.carterproducts.com/band-saw-products/band-saw-guides

Don
Title: Re: A portable steam engine
Post by: Roger B on May 04, 2015, 08:55:53 AM
Good progress (until the bandsaw  :( )  :ThumbsUp:  :ThumbsUp: That's quite an interesting problem aligning all the parts on a round boiler  ::)  :headscratch:
Title: Re: A portable steam engine
Post by: Firebird on May 04, 2015, 12:20:43 PM
Hi.

Thanks Don, I have checked out their web site but they seem to be more involved in commercial wood cutting bandsaws not the hobby stuff like ours.

Roger, yes it made the old grey matter groan a bit. The good thing is I'm practicing on a bit of plastic tube. I have already spotted one problem which will be easy to rectify. When the crank is at the top of its stroke the con rod is very close to touching the top of the hole in the slide bar support. Moving the crank mounting further forward with a longer con rod will solve the problem.

I have e mailed a company that I have dealt with over many years, Axminster power tools. They do their own version of the bandsaw. Looking closely at the pictures on their web site it looks to be basically the same machine, I have asked if they supply spare parts. Its bank holiday weekend so I won't get a reply until Tuesday.

Looking closely at the broken casting I think its Makeable. I would have to hack it out of a lump of steel but its possible. Only thing is I need a bandsaw to cut it with :thinking: :facepalm: :lolb:

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on May 16, 2015, 07:48:34 PM
Hi

Axminster power tools supplied a new part.   :praise2: It came complete with 3 new bearings and pins etc. It differs slightly from mine, I had to drill and tap a couple of holes but other than that no problems. Its now fitted and the old bandsaw is up and running again.  :whoohoo:

Cheers

Rich
Title: Re: A portable steam engine
Post by: Admiral_dk on May 17, 2015, 09:36:36 AM
Always nice to get your tools fixed  :D

I hope that you will continue the journey on the engine now  :)
Title: Re: A portable steam engine
Post by: Firebird on May 25, 2015, 08:49:05 PM
Hi

I have made a start on the con rod. First job was to prepare a bit of the sintered bronze I have, 3/4" X  5/16". A tip for any newbies watching, try to use parallels in the vise to support the work piece and tap it down while tightening the vise to keep the parallels tight underneath. If you have to remove the work piece for measuring you can get it back in the same place using this method.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05414_zps3aux8ooi.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05414_zps3aux8ooi.jpg.html)

Drill 1/8" holes around 1" deep. Note I'm using my tablet for DRO's

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05418_zpsnfkal0br.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05418_zpsnfkal0br.jpg.html)

Chop a bit off one end.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05425_zpsnypxbhoe.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05425_zpsnypxbhoe.jpg.html)

Machine the mating faces square.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05427_zpstuox26ll.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05427_zpstuox26ll.jpg.html)

Bolt the two halves together

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05429_zpsbtkttrps.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05429_zpsbtkttrps.jpg.html)

Use an edge finder then accurately locate the centre where the two halves meet.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05436_zpse6a9fsrb.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05436_zpse6a9fsrb.jpg.html)

Drill and ream.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05442_zpsza2llmjz.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05442_zpsza2llmjz.jpg.html)

Turn a mandrel and drill and tap 5mm

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05448_zps3n4cnrqc.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05448_zps3n4cnrqc.jpg.html)

Bolt the piece on

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05450_zpsdlnqibvr.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05450_zpsdlnqibvr.jpg.html)

Turn a shoulder on each side

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05459_zpsfpv2dhib.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05459_zpsfpv2dhib.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05465_zpsgz4zqqq9.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05465_zpsgz4zqqq9.jpg.html)

The con rod is made from a bit of 3/4" x 1/4" steel

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05467_zpshxq7rnnt.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05467_zpshxq7rnnt.jpg.html)

Machine out some of the waste

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05469_zps3v04tra3.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05469_zps3v04tra3.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05473_zpswrnven9m.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05473_zpswrnven9m.jpg.html)

Use an edge finder then drill two 1/8" holes and centre drill the centre.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05478_zpsphiluzrk.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05478_zpsphiluzrk.jpg.html)

Set up in the 4 jaw using a DTI and spring loaded centre

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05480_zps0nsguhud.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05480_zps0nsguhud.jpg.html)

Turn the centre section round. Here I have changed to a right hand cutter to finish the right hand side

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05484_zpsh3zh0lmv.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05484_zpsh3zh0lmv.jpg.html)

Remove from the chuck and chop off the waste.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05487_zpsicqda6tm.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05487_zpsicqda6tm.jpg.html)

Bolt the bits together. The square headed bolts I am using are 1/8  x  40 (1/8 whitworth) I picked up a box full at a steam fair for a £1.00. Really useful and look the part.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05491_zpsqshit0pk.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05491_zpsqshit0pk.jpg.html)

Laying on the engine

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05492_zpsjvl4m6jt.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05492_zpsjvl4m6jt.jpg.html)

Not too bad. Next job is to shape the other end

Cheers

Rich




Title: Re: A portable steam engine
Post by: Firebird on May 28, 2015, 08:07:10 PM
Hi

The con rod fixed to a bit of scrap ally, drilled and reamed 1/4" The crosspin is 3/16". So I am going to make and press in a bronze bush.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05495_zpsp8h15t4l.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05495_zpsp8h15t4l.jpg.html)

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on May 31, 2015, 04:51:51 PM
Hi

A bit of shaping

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05504_zpskoyxbr6r.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05504_zpskoyxbr6r.jpg.html)

Then make up another mandrel

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05511_zpsxbk9orcp.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05511_zpsxbk9orcp.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05513_zpszqdj99kw.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05513_zpszqdj99kw.jpg.html)

Then set up the rotary table centred under the quill. The mandrel is centred in the 4 jaw using a DTI. The conrod is then fixed to the mandrel with a 5mm nut and washers. The other end is supported using a couple of clamps. I'm using my phone for the DRO's this time.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05517_zpshqbtstac.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05517_zpshqbtstac.jpg.html)

Then its slowly machine away, gently doe's it. Heres a bit of video, sorry its a bit shaky.

Z5NJFeA1468
Finished machining to a 3/8" radius. You can see .375 on the DRO.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05521_zpsllxqbzpq.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05521_zpsllxqbzpq.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05525_zpsqhfua0gr.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05525_zpsqhfua0gr.jpg.html)

Drill a bit of 1/4" phosphor bronze rod

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05532_zpsnnjfy2el.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05532_zpsnnjfy2el.jpg.html)

Then part off a bit 1/4" long and ream 3/16"

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05534_zpsxqwbdbve.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05534_zpsxqwbdbve.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05538_zpspkf2q68i.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05538_zpspkf2q68i.jpg.html)

Glue in with a bit of loctite

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05543_zps4bvaua3k.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05543_zps4bvaua3k.jpg.html)

Finally a test fit to the engine. This is not the crank I will use its just one I made up for testing.

A bit of video.

H3i5lgoFEeg
It all seems to turn ok I'm happy to say.  :whoohoo: :cartwheel: :DrinkPint:

Cheers

Rich

Title: Re: A portable steam engine
Post by: NickG on May 31, 2015, 10:30:32 PM
Turning over nicely there Rich.
Title: Re: A portable steam engine
Post by: fumopuc on June 01, 2015, 06:34:58 PM
Hi Rich, that seems to be a very good result in this special and  tricky setting.
Title: Re: A portable steam engine
Post by: Firebird on June 01, 2015, 08:49:33 PM
Hi

Thanks Nick and Achim. Encouragement is always welcome.

I'm not working to any plans just making it up as I go along. I need to know that everything works before I commit myself to the copper boiler. Working on the bit of plastic tube will allow mistakes to be made. Once I have everything working I can take measurements to transfer to the copper boiler. I need to silver solder plates inside so that there is enough thickness to tap for studs. I think I might continue with the engine for now and see if it will run on air.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on June 06, 2015, 09:05:03 PM
Hi

I need a flywheel so I went to the raw material department of my shed and this is what I came up with. A brass ring about       4 3/4" , a pair of brass toasting forks salavaged from somewhere and a bit of steel bar.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05545_zps6fvnofiq.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05545_zps6fvnofiq.jpg.html)

Starting with the steel bar in the lathe to make the hub I gave it a light skim to clean up and faced it. Then drilled 7.9mm

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05550_zpswlk44mej.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05550_zpswlk44mej.jpg.html)

Transfer to the rotary table in the mill and centralise in the 4 jaw with a DTI

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05556_zpsv1onhzbm.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05556_zpsv1onhzbm.jpg.html)

Then centre find and end find.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05559_zpszb7rezlg.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05559_zpszb7rezlg.jpg.html)

Drill 6 holes every 60°

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05561_zpslcnay7mg.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05561_zpslcnay7mg.jpg.html)

Then tap 1/4" whitworth

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05568_zpsewapugl8.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05568_zpsewapugl8.jpg.html)

Lightly counterbore each hole with a 1/4" drill

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05569_zpsuxrf7hry.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05569_zpsuxrf7hry.jpg.html)

Drill and tap 3/16" whitworth for a fixing bolt.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05579_zps6ukkmni0.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05579_zps6ukkmni0.jpg.html)

Cut off, turn to size and profile each end with a round profile cutter

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05581_zpskpylz6nn.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05581_zpskpylz6nn.jpg.html)

Back in the lathe and ream 8mm

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05583_zpsxe7tfjh2.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05583_zpsxe7tfjh2.jpg.html)

A trial fit on the crank

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05585_zpstodpfdup.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05585_zpstodpfdup.jpg.html)

So far so good. Now I need to fit the rim

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05587_zps3waonaln.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05587_zps3waonaln.jpg.html)

The 2 toasting forks yielded enough 1/4" round brass for the spokes

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05548_zpsj4xgbou6.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05548_zpsj4xgbou6.jpg.html)

cut into 6 lengths

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05589_zpsgfeqwnjb.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05589_zpsgfeqwnjb.jpg.html)

Each piece is faced and chamfered

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05590_zpsqn4chfcx.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05590_zpsqn4chfcx.jpg.html)

Then threaded 1/4" whitworth

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05595_zps59rf65ua.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05595_zps59rf65ua.jpg.html)

Each spoke is screwed into the hub

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05599_zpsaduqlbxp.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05599_zpsaduqlbxp.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05598_zpsuzkv2z7m.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05598_zpsuzkv2z7m.jpg.html)

Cheers

Rich

Title: Re: A portable steam engine
Post by: Firebird on June 07, 2015, 02:50:16 PM
Hi

Enough shop time to finish the flywheel today :whoohoo:

The brass ring in the lathe, faced and internally skimmed

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05601_zpsctemf29i.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05601_zpsctemf29i.jpg.html)

The chuck is transferred to the rotary table and 6   1/4"   holes drilled.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05603_zpsitdpyni5.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05603_zpsitdpyni5.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05608_zpsoirlu4ce.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05608_zpsoirlu4ce.jpg.html)

The spokes have been polished and placed into the ring.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05611_zpszvmmhxwx.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05611_zpszvmmhxwx.jpg.html)

The spokes are screwed into the hub a touch at a time until they are all tight. It sort of self centres as they are screwed in.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05612_zpsltaoilbq.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05612_zpsltaoilbq.jpg.html)

Hows it look so far, not bad.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05615_zpsawe03yid.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05615_zpsawe03yid.jpg.html)

Cut off the excess spokes.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05616_zpsvnzxxylc.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05616_zpsvnzxxylc.jpg.html)

Make up another mandrel and mount in the lathe.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05622_zpsahhbehje.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05622_zpsahhbehje.jpg.html)

Turn the outer rim.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05623_zpsajahfqhx.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05623_zpsajahfqhx.jpg.html)

On the engine.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05626_zpsflkpfrsf.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05626_zpsflkpfrsf.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05629_zpspblabn1c.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05629_zpspblabn1c.jpg.html)

Cheers

Rich



Title: Re: A portable steam engine
Post by: Kim on June 07, 2015, 04:10:05 PM
That's pretty slick Rich!  :ThumbsUp: :ThumbsUp:
Did you loktite the spokes in, so they don't work their way out? Just wondering...
Enjoying your build.  :popcorn:
Kim
Title: Re: A portable steam engine
Post by: fumopuc on June 07, 2015, 06:56:51 PM
Hi Rich, nice flywheel. This chuck in the chuck at your mill looks like  a small adventure.
Title: Re: A portable steam engine
Post by: Firebird on June 07, 2015, 07:57:41 PM
Hi

Thanks Kim and Achim.

No I didn't use any loctite. I held the waste part of each spoke in my vise and tightened it into the hub. As the spoke entered the counterbore in the hub it was to tight to turn by hand. I doubt it will loosen.

I have an adapter threaded to take myford chucks. I held that in the chuck on the rotary table then unscrewed the chuck from the lathe complete with workpiece and screwed it onto the adapter. It was solid enough to drill holes. I wouldnt attempt any machining without further support.

Cheers

Rich
Title: Re: A portable steam engine
Post by: fumopuc on June 07, 2015, 08:14:08 PM
.......

I have an adapter threaded to take myford chucks. I held that in the chuck on the rotary table then unscrewed the chuck from the lathe complete with workpiece and screwed it onto the adapter. It was solid enough to drill holes. I wouldnt attempt any machining without further support.

Hi Rich, that is a very good system, something to think about.
Title: Re: A portable steam engine
Post by: NickG on June 07, 2015, 08:46:36 PM
Nice flywheel Rich, how tight were the spokes in the holes in the rim? I only ask because when you turned the od I was surprised you couldn't see them?
Title: Re: A portable steam engine
Post by: bouch on June 07, 2015, 09:44:31 PM
Hi

Thanks Kim and Achim.

No I didn't use any loctite. I held the waste part of each spoke in my vise and tightened it into the hub. As the spoke entered the counterbore in the hub it was to tight to turn by hand. I doubt it will loosen.

Rich

Since its too late to loctite the threads, I would suggest you put a spot of solder on each spoke to make sure they don't loosen.  Touch of flux on the inside of the rim, a small piece of solder, and heat from the outside of the rim so the solder is pulled through the rim.

Anything held just by threads can loosen, isn't that one of murphys laws?

Mike
Title: Re: A portable steam engine
Post by: rarach22 on June 07, 2015, 09:55:13 PM
Beautiful work, congratulation. Pavel
Title: Re: A portable steam engine
Post by: Firebird on June 07, 2015, 10:08:57 PM
Hi

I forgot to mention that the holes in the rim were drilled then reamed so the spokes were a dead fit. The thread on the spokes was a tight, not loose, fit. i had to hold each spoke in turn in the vise then turn the hub with a bar through its centre to tighten them. I'm confident they won't come loose.

Cheers

Rich
Title: Re: A portable steam engine
Post by: b.lindsey on June 08, 2015, 01:18:41 AM
You have made so fine progress since I last checked in Rich. The flywheel turned out great as well and the whole thing is going to be quite an accomplishment!!

Bill
Title: Re: A portable steam engine
Post by: Firebird on June 21, 2015, 06:33:45 PM
Hi

Thanks Bill

Today is Fathers day  :whoohoo: so I get to do whatever I want. A day in my shed sounds perfect :cartwheel:

So I made the eccentric and started on the sheave, I think its called the sheave.  :noidea:

The eccentric needs to be adjustable on the crankshaft to get the timing right. The simplest way, a way I have used before is to drill and tap the eccentric hub and fit a grub screw. I wanted something that looks a bit better than a grub so came up with this idea. I will only show a few photos now, I wasn't happy with the finish on the first attempt so I have made another that I will show later. Its basically the same just finished better.

A piece of steel is turned to size and centred then transfered to the mill. Recentred then the offset is centred.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05650_zpsfmizupbr.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05650_zpsfmizupbr.jpg.html)

Back in the lathe and centred in the 4 jaw using a DTI and spring loaded plunger

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05653_zpsw4wahq3v.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05653_zpsw4wahq3v.jpg.html)

After turning the hub it went over to the mill and had half th hub machined away and drilled and tapped 3/32

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05658_zpsubqruo4s.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05658_zpsubqruo4s.jpg.html)

A cap is made to suit

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05664_zpsmendihqr.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05664_zpsmendihqr.jpg.html)

The eccentric clamps to the crankshaft

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05666_zps9ft7uer7.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05666_zps9ft7uer7.jpg.html)

The sheave I am making from a piece of 1 1/2"  X 1/4" brass bar. Marked out

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05672_zpscq0i7otd.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05672_zpscq0i7otd.jpg.html)

Cut off and centre in the 4 jaw

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05676_zpsqejcsxsk.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05676_zpsqejcsxsk.jpg.html)

First drill out with a large drill

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05684_zpsmb4c8nnf.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05684_zpsmb4c8nnf.jpg.html)

Then finish with a boring bar

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05687_zps2jt3q4tk.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05687_zps2jt3q4tk.jpg.html)

Grind a tool to machine the groove

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05694_zpshxthzzpy.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05694_zpshxthzzpy.jpg.html)

And machine the groove

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05701_zpspk5fzzbl.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05701_zpspk5fzzbl.jpg.html)

A bit of hacksaw work

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05707_zpsc9q0ubgu.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05707_zpsc9q0ubgu.jpg.html)

Make up another mandrel

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05708_zpsoutduhcf.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05708_zpsoutduhcf.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05710_zpsvnmcu5yx.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05710_zpsvnmcu5yx.jpg.html)

Back in the mill and rotary table for a bit of turning

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05714_zpsloeccwnj.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05714_zpsloeccwnj.jpg.html)

Cheers

Rich
Title: Re: A portable steam engine
Post by: Jim Nic on June 21, 2015, 08:00:52 PM
Hi Rich
Just catching up here.
I like your flywheel which is a method I had in mind for my current project.  Now I have seen what is possible I will definitely be using it.
I was also taken with your eccentric which avoids the use of a grubscrew marking the crankshaft, allows easy adjustment and looks suitably "technical".  What's not to like?
Thanks for posting, keep up the good work.
Jim
Title: Re: A portable steam engine
Post by: Firebird on July 19, 2015, 01:32:09 PM
Hi

Thanks Jim.

Funny how you think you are getting on well only to find you have made a ^&**%$ up of things.

The sheave is drilled then tapped for the link rod.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05720_zpsibbdzwmb.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05720_zpsibbdzwmb.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05725_zpsadqv0ik0.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05725_zpsadqv0ik0.jpg.html)

Then drilled through at where the joint will be

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05722_zpstq4ljkbo.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05722_zpstq4ljkbo.jpg.html)

Cut in half with a slitting saw. This one is only .015 thick.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05734_zpsd3uuj0xn.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05734_zpsd3uuj0xn.jpg.html)

Its at this point that I found out I had made a mistake.  :facepalm:

The sheave didn't fit the eccentric :help: I had cut the groove .040 undersize.

Unfortunately there was not enough materilal on the eccentric to turn that down a bit. I was almost resigned to scrapping it and starting again when I had an idea. On another project I have been wondering whether or not cutters can be made from mild steel then case hardened. No time like the present to find out.

I made up a mandrel, the boss is 8mm then drilled and tapped 6mm

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05738_zpscsmjxf0f.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05738_zpscsmjxf0f.jpg.html)

A piec of steel drilled 8mm fitted to the mandrel and turned to the exact size of the eccentric, .972

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05745_zpsc7wxee8w.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05745_zpsc7wxee8w.jpg.html)

Over to the mill and rotary table to have the teeth cut

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05748_zpslvi0slfx.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05748_zpslvi0slfx.jpg.html)

Heat to cherry red

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05756_zpsrflidtfi.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05756_zpsrflidtfi.jpg.html)

And drop into the case hardening powder

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05750_zpsqawnmli8.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05750_zpsqawnmli8.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05754_zpsgu5xf8ds.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05754_zpsgu5xf8ds.jpg.html)

Leave it for 30 minutes

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05760_zps1saxzif9.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05760_zps1saxzif9.jpg.html)

After a clean up mount it on the mandrel and re machine the two halves of the sheave

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05769_zpsqts4d2mn.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05769_zpsqts4d2mn.jpg.html)

It worked. Well enough to get the correct size. The teeth could do with backing off to give a bit more clearance but it cut the brass ok.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05772_zpsfzpzvr4d.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05772_zpsfzpzvr4d.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05774_zpsf2mtvuag.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05774_zpsf2mtvuag.jpg.html)

I have fitted the slide valve and housing to measure for the link rod.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05789_zpsisohucg2.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05789_zpsisohucg2.jpg.html)

Thats it for now. There is a little when I get the photos uploaded.

Cheers

Rich


Title: Re: A portable steam engine
Post by: Admiral_dk on July 19, 2015, 09:22:22 PM
It's nice when you can save / correct a mistake you made and end up with something useable  :ThumbsUp:
Title: Re: A portable steam engine
Post by: Firebird on July 21, 2015, 08:13:39 PM
Hi

Thanks Admiral.

The connecting rod is 5/32 stainless steel. The coupling is made from 1/4" square brass.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05807_zpscu2ci4rd.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05807_zpscu2ci4rd.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05811_zpswtnsiigq.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05811_zpswtnsiigq.jpg.html)

Cheers

Rich

Title: Re: A portable steam engine
Post by: Roger B on July 21, 2015, 08:27:14 PM
Good progress and a good save  :ThumbsUp:  :ThumbsUp:
Title: Re: A portable steam engine
Post by: Firebird on July 25, 2015, 08:12:15 PM
Hi

Thanks Roger.

I needed a couple of bolts for the eccentric so today I made a couple. Start with 2 studs made from 3/32 stainless steel.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05818_zpsovimfc5v.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05818_zpsovimfc5v.jpg.html)

Screw on 2 steel nuts

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05820_zpsxpml8wcj.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05820_zpsxpml8wcj.jpg.html)

Silver solder

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05822_zpsgakzimj5.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05822_zpsgakzimj5.jpg.html)

Clean up

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05824_zpstephui3a.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05824_zpstephui3a.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05825_zpstvv63ivk.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05825_zpstvv63ivk.jpg.html)

Fitted in the eccentric. I will fit locking half nuts on final assembly

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05828_zpssf1w8p0s.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05828_zpssf1w8p0s.jpg.html)

Moving on to the piston. About 6 months ago I bought a piece of cast iron bar to make the piston. Could I find it.  :shrug: :noidea: :thinking: :old: yes after about 2 hours of searching, what a waste of a rare saturday afternoon in the workshop :censored:

The piston rod is 5/32 stainless steel.


(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05837_zpsotuevjpm.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05837_zpsotuevjpm.jpg.html)

The elusive cast iron turned to size and drilled and tapped

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05841_zps8oiwfhjg.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05841_zps8oiwfhjg.jpg.html)

The piston rod is held in the tail stock chuck to ensure correct alignment. A drop of loctite on the thread and the 2 parts screwed together.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05842_zpst00g0xt2.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05842_zpst00g0xt2.jpg.html)

Cut a ring groove and part off

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05849_zpszemjsnfv.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05849_zpszemjsnfv.jpg.html)

Face and size the piston

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05852_zpsmgvbuhl0.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05852_zpsmgvbuhl0.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05856_zpsuivjecjv.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05856_zpsuivjecjv.jpg.html)

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on July 27, 2015, 07:54:48 PM
Hi

My plan is to get the engine to run on air. Once I know it will run I can can get on with the boiler. I have started to assemble the engine, if it does run I will strip it down again to finish off all the cosmetic bits and polish it.

Here's some of the parts. The cylinder block has had the studs fitted.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05861_zpsaizgdslu.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05861_zpsaizgdslu.jpg.html)

The slide valve and the slide valve housing fitted.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05863_zpsghxgydhj.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05863_zpsghxgydhj.jpg.html)

The slide valve gland is packed with carbon string.

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05866_zpscl0sfbv7.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05866_zpscl0sfbv7.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05871_zpszehone8g.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05871_zpszehone8g.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05875_zpsup5kwh4x.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05875_zpsup5kwh4x.jpg.html)

The cylinder covers, piston and connecting rod in place

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05873_zpsj8xvwqvl.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05873_zpsj8xvwqvl.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/DSC05874_zpskh5logsg.jpg) (http://s242.photobucket.com/user/firebird_021/media/DSC05874_zpskh5logsg.jpg.html)

Cheers

Rich
Title: Re: A portable steam engine
Post by: Stilldrillin on July 27, 2015, 10:49:30 PM
Rich.

It's all looking good, and taking shape nicely....... (http://smileys.on-my-web.com/repository/Respect/respect-048.gif)

David D
Title: Re: A portable steam engine
Post by: b.lindsey on July 28, 2015, 12:46:59 AM
That is looking amazing Rich. I have been following along just haven't been commenting much. Very nicely done!!

Bill
Title: Re: A portable steam engine
Post by: Don1966 on July 28, 2015, 01:24:39 AM
That is looking amazing Rich. I have been following along just haven't been commenting much. Very nicely done!!

Bill
Same here Rich and some impressive work your doing.

Don
Title: Re: A portable steam engine
Post by: Firebird on August 01, 2015, 10:13:39 PM
Hi

Thanks David Bill and Don.

Well what do you know, it runs :wine1: :cheers: :DrinkPint:

WQrsK5ileKU
Cheers

Rich
Title: Re: A portable steam engine
Post by: Don1966 on August 02, 2015, 02:05:32 AM
Cool Rich I love it!   8)

Don
Title: Re: A portable steam engine
Post by: Kim on August 02, 2015, 03:00:50 AM
It runs!  Congratulations Rich!  :ThumbsUp:
Kim
Title: Re: A portable steam engine
Post by: Roger B on August 02, 2015, 07:24:10 AM
Very nice  :praise2:  :praise2:
Title: Re: A portable steam engine
Post by: Jo on August 02, 2015, 07:52:48 AM
 8) Don't you love it when they come to life   :cartwheel:

Jo
Title: Re: A portable steam engine
Post by: ths on August 02, 2015, 09:04:11 AM
Well done Rich, ticks over very nicely indeed. Cheers, Hugh.
Title: Re: A portable steam engine
Post by: NickG on August 02, 2015, 01:14:55 PM
Nice 1 Rich, looking brilliant!
Title: Re: A portable steam engine
Post by: b.lindsey on August 02, 2015, 01:38:23 PM
Congratulations Rich!! Runs as good as it looks...well done!

Bill
Title: Re: A portable steam engine
Post by: Dave Otto on August 02, 2015, 04:21:28 PM
Nicely done Rich!

Congrats!

Dave
Title: Re: A portable steam engine
Post by: fumopuc on August 02, 2015, 06:38:59 PM
Hi Rich, nice to see it running. Congratulations.
Title: Re: A portable steam engine
Post by: Stilldrillin on August 02, 2015, 08:58:31 PM
That's a fine sight, and sound, Rich.  :)

Well done!  :praise2:

David D
Title: Re: A portable steam engine
Post by: Firebird on December 29, 2015, 09:11:18 PM
Hi

well its been on the back burner for a while hasn't it. Thanks for all the nice comments  :ThumbsUp:

I had a few hours on it today. I'm not happy with the crank support so have started on a new one. Its built in a similar fashion to the first one. I want to have the eccentric inboard.

First turn a spacer 2.25" long drill and tap 6mm each end

(http://i242.photobucket.com/albums/ff17/firebird_021/20151229_125038_zpsaljf2yok.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151229_125038_zpsaljf2yok.jpg.html)

The new uprights are thicker, 5/16 compared to 1/4 on the old ones. I have gone with bronze bushes instead of bearings as well. the spacer fitted to hold things square

(http://i242.photobucket.com/albums/ff17/firebird_021/20151229_130504_zpsouzjpek0.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151229_130504_zpsouzjpek0.jpg.html)

Clamped to the new saddle

(http://i242.photobucket.com/albums/ff17/firebird_021/20151229_131107_zpsl5jswpfk.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151229_131107_zpsl5jswpfk.jpg.html)

In the brazing hearth with flux and silver solder

(http://i242.photobucket.com/albums/ff17/firebird_021/20151229_131325_zpsrg13iles.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151229_131325_zpsrg13iles.jpg.html)

After brazing

(http://i242.photobucket.com/albums/ff17/firebird_021/20151229_140443_zpshn30rgaa.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151229_140443_zpshn30rgaa.jpg.html)

A trial fit

(http://i242.photobucket.com/albums/ff17/firebird_021/20151229_141542_zpswmvrxwgm.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151229_141542_zpswmvrxwgm.jpg.html)

Compared to the first one

(http://i242.photobucket.com/albums/ff17/firebird_021/20151229_141610_zpsumqwtje6.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151229_141610_zpsumqwtje6.jpg.html)

Theres still a lot of work to do but it looks better

Cheers

Rich





Title: Re: A portable steam engine
Post by: zeeprogrammer on December 29, 2015, 09:18:01 PM
Goodie. Glad to see the progress.
Title: Re: A portable steam engine
Post by: Firebird on January 03, 2016, 03:54:23 PM
Hi

Thanks Carl

The new mount in the mill mounted on a bit of scrap steel in the rotary table having 6 mounting holes drilled. This set up ensures the holes are drilled at 90° to the saddle

(http://i242.photobucket.com/albums/ff17/firebird_021/20151231_124642_zps2tvriopc.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151231_124642_zps2tvriopc.jpg.html)

The new crank mount looks better with the inboard eccentric but needs filling out a bit, ie fillets. With the crank and eccentric fitted I traced round it. Note this is a new crankshaft, I'll show that later

(http://i242.photobucket.com/albums/ff17/firebird_021/20160102_143916_zpslg5dleau.jpg) (http://s242.photobucket.com/user/firebird_021/media/20160102_143916_zpslg5dleau.jpg.html)

Then shade in where the fillets will go

(http://i242.photobucket.com/albums/ff17/firebird_021/20160102_144319_zps5tvljxwu.jpg) (http://s242.photobucket.com/user/firebird_021/media/20160102_144319_zps5tvljxwu.jpg.html)

Cut some pieces of 3/16 thick ally as per the drawing. I screw small bits to some scrap wood for cutting

(http://i242.photobucket.com/albums/ff17/firebird_021/20160102_150312_zps7fmaiwed.jpg) (http://s242.photobucket.com/user/firebird_021/media/20160102_150312_zps7fmaiwed.jpg.html)

Laid out on the drawing

(http://i242.photobucket.com/albums/ff17/firebird_021/20160102_154828_zpstz7i9obs.jpg) (http://s242.photobucket.com/user/firebird_021/media/20160102_154828_zpstz7i9obs.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/20160102_154857_zpsfrwra1dr.jpg) (http://s242.photobucket.com/user/firebird_021/media/20160102_154857_zpsfrwra1dr.jpg.html)

I use this stuff for bonding metal parts, sticks anything to anything

(http://i242.photobucket.com/albums/ff17/firebird_021/20160102_155042_zpshj40vfnc.jpg) (http://s242.photobucket.com/user/firebird_021/media/20160102_155042_zpshj40vfnc.jpg.html)

The 4 parts stuck in

(http://i242.photobucket.com/albums/ff17/firebird_021/20160102_160009_zpslnq4ezoa.jpg) (http://s242.photobucket.com/user/firebird_021/media/20160102_160009_zpslnq4ezoa.jpg.html)

When its fully hardened I will mix up a little more to fill in and smooth out.

Cheers

Rich

Title: Re: A portable steam engine
Post by: Firebird on January 03, 2016, 04:56:35 PM
Hi

The new crankshaft.

2 pieces of 1/2"  X  1/4" flat steel. Drill through the 2 parts together 5mm. Tap the longer part 6mm and drill the shorter part 6mm. Bolt the 2 pieces together with a short bolt.

(http://i242.photobucket.com/albums/ff17/firebird_021/20151229_140144_zpstkruz6ka.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151229_140144_zpstkruz6ka.jpg.html)

In the mill vise square to the table, use a parrallel to make sure the part is level and accurately find the centre with a wiggler. Centre drill 2 holes 1/2" apart

(http://i242.photobucket.com/albums/ff17/firebird_021/20151230_101814_zpsle68gaus.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151230_101814_zpsle68gaus.jpg.html)

Drill 7.8mm then ream 8mm. Slightly counter sink the outside of each piece to give a recess for the silver solder to flow into

(http://i242.photobucket.com/albums/ff17/firebird_021/20151230_103236_zpsjjkq5fsw.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151230_103236_zpsjjkq5fsw.jpg.html)

A 3/8" wide spacer is turned and drilled 6mm. A piece of 3/8" flat bar is also used. 8mm round steel bar is used for the crankshaft and crank pin, the crank pin is 7/8" long. The steel bar I use is salvaged. It is the rear tailgate stays from hatchback cars. The steel is beautifully ground, bang on 8mm and slightly hard but not too hard to work. Assembled and in the brazing hearth flux is applied and one side silver soldered

(http://i242.photobucket.com/albums/ff17/firebird_021/20151230_111807_zps5ric2l1s.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151230_111807_zps5ric2l1s.jpg.html)

Allow the part to cool naturally then clean up the other side with a wire brush and emery and solder that side. I have tried building cranks before by soldering but not got on very well. Too much silver solder getting through to the crank pin which is extremely difficult to remove. Before I only had my propane torch which heats the whole thing before the solder flows but I now have this bit of kit.

(http://i242.photobucket.com/albums/ff17/firebird_021/20151231_114332_zpsvbopovkv.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151231_114332_zpsvbopovkv.jpg.html)

Much hotter and more precise I was able to heat just the one side very quickly. Then the other side was soldered. Careful to use just a small amount of solder barely anything came through to the crank pin

After cutting off the waste

(http://i242.photobucket.com/albums/ff17/firebird_021/20151230_141114_zpsvi02xemn.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151230_141114_zpsvi02xemn.jpg.html)

By mounting in the lathe and rocking the chuck back and forth one side was machined to shape

(http://i242.photobucket.com/albums/ff17/firebird_021/20151231_103414_zps9spkrvum.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151231_103414_zps9spkrvum.jpg.html)

The other side was filed to shape then polished with emery

(http://i242.photobucket.com/albums/ff17/firebird_021/20151231_110358_zpsjpkdbxgp.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151231_110358_zpsjpkdbxgp.jpg.html)

The last bit of waste cut out

(http://i242.photobucket.com/albums/ff17/firebird_021/20151231_110657_zpsat5fi6kl.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151231_110657_zpsat5fi6kl.jpg.html)

A trial fit of the crankshaft

(http://i242.photobucket.com/albums/ff17/firebird_021/20151231_113541_zpsb1qqipf7.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151231_113541_zpsb1qqipf7.jpg.html)

A mock up on the engine

(http://i242.photobucket.com/albums/ff17/firebird_021/20151231_142205_zpsejeglvpc.jpg) (http://s242.photobucket.com/user/firebird_021/media/20151231_142205_zpsejeglvpc.jpg.html)

Cheers

Rich
Title: Re: A portable steam engine
Post by: zeeprogrammer on January 03, 2016, 04:59:32 PM
Looking great.

Was there another operation after sawing the web out? Or did it end up flush?
Title: Re: A portable steam engine
Post by: Firebird on January 03, 2016, 05:03:35 PM
Hi Carl

A little bit of filing was needed but not much.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Kim on January 03, 2016, 05:04:59 PM
That's looking really nice Rich!  You should be feeling pretty good about it :)
Kim
Title: Re: A portable steam engine
Post by: fumopuc on January 03, 2016, 06:41:04 PM
Hi Rich, I am still following along quietly.
Title: Re: A portable steam engine
Post by: Dave Otto on January 04, 2016, 01:01:03 AM
Nice update Rich,

I was hoping to be able to watch you silver solder those little gussets in place. :lolb:

Dave
Title: Re: A portable steam engine
Post by: Firebird on January 10, 2016, 04:23:08 PM
Hi

Thanks Kim, Achim and Dave

Not much to report this week. I need to make the eccentric connecting rod adjustable without dis-connecting it to adjust. Disconnecting it only gives adjustment a half turn at a time, I need something a little finer. The answer is to make one end of the rod right hand thread and the other end left hand thread

Now I am going to mix imperial and metric here, it doesn't bother me I will work to whatever I have, but my opologies to the purists among us who only like to work in one size.

I use 5/32" stainless steel rod because I have a good stock of it.
I use BA nuts because I have a good stock of them and they look right
I have used 4mm because its the only left hand thread I have

As a quick comparrison converted to thou's

5/32  =  0.1562
3 BA  =  0.1614
4mm  =  0.1575

There is only 0.0039 between the 3, near enough for me  :ThumbsUp:

I have used a 4BA nut drilled out and tapped 4mm left hand thread.

(http://i242.photobucket.com/albums/ff17/firebird_021/20160110_112724_zpsifowpb4f.jpg) (http://s242.photobucket.com/user/firebird_021/media/20160110_112724_zpsifowpb4f.jpg.html)

(http://i242.photobucket.com/albums/ff17/firebird_021/20160110_111914_zpsvufaeudl.jpg) (http://s242.photobucket.com/user/firebird_021/media/20160110_111914_zpsvufaeudl.jpg.html)

Left hand thread and nut

(http://i242.photobucket.com/albums/ff17/firebird_021/20160110_112655_zps5x9kttha.jpg) (http://s242.photobucket.com/user/firebird_021/media/20160110_112655_zps5x9kttha.jpg.html)

I just need to make a new brass piece now with left hand thread and thread the other end 3BA to screw into the eccentric.

I hope you have enjoyed my multi size approach  :Lol:

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on January 17, 2016, 04:41:32 PM
Hi

I'm still not happy with the crank support, it just doesn't sit right  :ShakeHead: :disappointed:

Maybe I'm just getting too fussy in my old age  :old:

The saddle part that I rolled from some flat bar must have a very slight twist in it. The engine runs and the support looks ok but I'm just not happy with it.

So in the lathe with a bit of steel tube

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160117_104613_zpsl5j0h3al.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160117_104613_zpsl5j0h3al.jpg.html)

Turn the outside

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160117_110136_zpskyh6ffyp.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160117_110136_zpskyh6ffyp.jpg.html)

Then the inside

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160117_114500_zps8fqansgy.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160117_114500_zps8fqansgy.jpg.html)

Until an offcut from the copper boiler tube fits inside

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160117_114741_zpsyrydxyav.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160117_114741_zpsyrydxyav.jpg.html)

Note the first snow of this winter outside my window

Make a couple of new crank supports. Very similar to the previous ones except I have just bored through 1/2" this time. I am going to make some bronze bushes from square stock that should look nicer.

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160116_161243_zpspmezmlut.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160116_161243_zpspmezmlut.jpg.html)

Cheers

Rich
Title: Re: A portable steam engine
Post by: scc on February 01, 2016, 10:43:32 PM
Hi Rich,  I have come in from my workshop and sat down with a brew and my laptop. A few hours later and I have been enthralled by your portable engine thread.  The set-ups, innovation and workmanship are great. I have learnt a lot. Very well done  :praise2: :praise2:
As an aside  where can I get a gas setup like yours?          Regards             Terry
Title: Re: A portable steam engine
Post by: Firebird on February 01, 2016, 11:08:41 PM
Hi Terry

Glad you like it.

I got my kit from here

http://www.thewelderswarehouse.com/index.html

No problems dealing with them. They have a video on youtube of the kit in action.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on March 25, 2016, 09:21:23 PM
Hi

With my bending rolls project on hold due to the broken tap I have had an afternoon back on the portable. Six holes are drilled in the new saddle, this method using the rotary table ensures the holes are at 90°

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160325_143743_zpso0romds4.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160325_143743_zpso0romds4.jpg.html)

Then with a 1/8" cutter the saddle is cut out

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160325_150653_zpsjqtdfupt.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160325_150653_zpsjqtdfupt.jpg.html)

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160325_151058_zpsqj95lbtn.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160325_151058_zpsqj95lbtn.jpg.html)

Thats better

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160325_151930_zps5n5sw6i3.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160325_151930_zps5n5sw6i3.jpg.html)

The sides are silver soldered to the saddle

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160325_153721_zpsgnrz1jih.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160325_153721_zpsgnrz1jih.jpg.html)

This new gas kit makes silver soldering thicker steel parts easy

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160325_153744_zpsuzqntczb.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160325_153744_zpsuzqntczb.jpg.html)

On to the bronze bushes. A piece of the sintered bronze is machined square to 5/8"

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160325_170314_zpswo6mxye5.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160325_170314_zpswo6mxye5.jpg.html)

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160325_170337_zpsmahdtteo.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160325_170337_zpsmahdtteo.jpg.html)

Find the centre and centre drill

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160325_171516_zpsomcy64sl.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160325_171516_zpsomcy64sl.jpg.html)

Set up in the 4 jaw

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160325_172556_zpsbydxe09c.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160325_172556_zpsbydxe09c.jpg.html)

Drill and ream 8mm

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160325_173145_zpsacrlc3ir.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160325_173145_zpsacrlc3ir.jpg.html)

Cheers

Rich
Title: Re: A portable steam engine
Post by: mal webber on March 26, 2016, 12:40:18 AM
Really nice build there ,a car wheel cylinder turned into a steam cylinder good work  :ThumbsUp:
Title: Re: A portable steam engine
Post by: Firebird on March 26, 2016, 05:29:43 PM
Hi

Thanks Mal. The brake cylinders machine beautifully and have a bore honed far better than i could achieve.

I finished the bronze bushes today

Make a mandrel, 8mm

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160326_112118_zpsnyyl3hgg.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160326_112118_zpsnyyl3hgg.jpg.html)

Mount the bush and turn down to 1/2" in 2 places. You can't see the cutter but because the crank support is made from 5/16" steel I simply sharpened a piece of 5/16" tool steel to a square end and plunged in.

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160326_115109_zpsf3qdgjbv.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160326_115109_zpsf3qdgjbv.jpg.html)

Testing for fit with one of the caps

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160326_115141_zps9s3tkdp8.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160326_115141_zps9s3tkdp8.jpg.html)

Cut the piece in half and turn each bush to size

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160326_121741_zpsz6jyum8o.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160326_121741_zpsz6jyum8o.jpg.html)

A trial fit with the crank

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160326_123159_zpsrok5tgwb.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160326_123159_zpsrok5tgwb.jpg.html)

Cheers

Rich



Title: Re: A portable steam engine
Post by: mal webber on March 27, 2016, 04:54:10 PM
Looking very nice good work on them bearing blocks

Mal.
Title: Re: A portable steam engine
Post by: Firebird on April 02, 2016, 07:31:38 PM
Hi

Thanks Mal

Not much to report this week, just made some fillets and stuck them in with car body filler.

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160402_155751_zpsyhtinuuk.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160402_155751_zpsyhtinuuk.jpg.html)

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on April 03, 2016, 05:09:57 PM
Hi

The filler hardened over night and was cleaned up with the small rotary tool and sandpaper. It took a couple of hours of sanding to get to this stage

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160403_103026_zpsplmx1spb.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160403_103026_zpsplmx1spb.jpg.html)

I spotted a few blemishes so applied more filler

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160403_104126_zpsxxg8ms5t.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160403_104126_zpsxxg8ms5t.jpg.html)

Then sanded down again.

Followed by a quick coat of spray primer

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160403_111835_zpsbxdonksz.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160403_111835_zpsbxdonksz.jpg.html)

Mounted on the boiler, looks ok

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160403_133834_zpsfspp3glg.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160403_133834_zpsfspp3glg.jpg.html)

Cheers

Rich
Title: Re: A portable steam engine
Post by: mal webber on April 03, 2016, 05:59:22 PM
Hi that part turned out very nice looks great.

Mal.
Title: Re: A portable steam engine
Post by: Roger B on April 03, 2016, 06:23:31 PM
Looks good to me  :ThumbsUp:  :ThumbsUp:
Title: Re: A portable steam engine
Post by: crueby on April 03, 2016, 08:48:44 PM
The body filler holds up to the heat from the boiler okay? Does it take a particular type?

Looking great, following along on the build...  :popcorn:
Title: Re: A portable steam engine
Post by: Firebird on April 04, 2016, 07:48:12 PM
Hi

Thanks Mal and Roger.

Crueby, its just regular body filler. The bonnet ( or hood to our USA members) of a car gets pretty hot, especially on a summers day and the filler stands up to the heat ok so I think it will be ok.

Cheers

Rich
Title: Re: A portable steam engine
Post by: Firebird on April 17, 2016, 08:53:12 AM
Hi

A bit of filing and fettling to give clearance for the crank

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160416_142710_zpsn8qi6yee.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160416_142710_zpsn8qi6yee.jpg.html)

Mounted on the test rig. I have made a new slide valve rod, one end with left hand thread to aid adjustment.

A bit of video

1pmcvKxzviA
Cheers

Rich
Title: Re: A portable steam engine
Post by: zeeprogrammer on April 17, 2016, 11:38:53 AM
Looks excellent Rich. Nice motion too.
Title: Re: A portable steam engine
Post by: Don1966 on April 17, 2016, 06:24:48 PM
Beautiful motion Rich and nice fabrication work......... :ThumbsUp:

Don
Title: Re: A portable steam engine
Post by: mal webber on April 17, 2016, 08:40:57 PM
That looks very smooth turning over nice job.

Mal.
Title: Re: A portable steam engine
Post by: joe d on April 17, 2016, 08:57:52 PM
Looking good,  Rich :ThumbsUp:

Cheers, Joe
Title: Re: A portable steam engine
Post by: Dave Otto on April 18, 2016, 01:46:30 AM
Nicely done Rich!

Dave
Title: Re: A portable steam engine
Post by: Firebird on May 15, 2016, 02:25:01 PM
Hi

Thanks Carl, Don, Mal, Joe, and Dave

Its been a while since I posted anything cos it is the season of DIY :( So much to do leaves little shop time. For the odd half hour I can swing here and there I have started on something that I can leave and go back to when time permits. I fancy wood wheels on the engine so thats what I'm having a go at. Never done this before but I have watched a bit of you tube and looked at a few web sites. These wheels will not be fuctional more cosmetic so I can cut a few corners.

Starting with a sketch for the larger rear wheels

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160515_123322_zps6rw43eyv.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160515_123322_zps6rw43eyv.jpg.html)

Followed by preparing some wood, mahogany, to 1/2" square

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160515_123334_zps4yk3xmgn.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160515_123334_zps4yk3xmgn.jpg.html)

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160515_130951_zpsqo4eshko.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160515_130951_zpsqo4eshko.jpg.html)

This is for the rim. I need to cut 10 pieces with their ends cut to 18°. You can see on the drawing at about the 2 o/c position where I have marked out the piece each side of one of the spokes. The mahogany is a nice wood, knot free and rairly straight grained but it does fluff a bit so might not be suitable for this type of work. It will do to practice with. I have some oak that might be better.

Cheers

Rich
Title: Re: A portable steam engine
Post by: mal webber on May 17, 2016, 02:23:24 AM
Hi Rich looking forward to see how your wheels turn out, as woodwork for me is a very weak point.

Mal
Title: Re: A portable steam engine
Post by: Jasonb on May 17, 2016, 07:57:32 AM
Rich the plecking (fluff) is most likely due to the angle of the tool if you used that insert tool to prep the wood, think of the angle of a plane iron and its far flatter so cuts rather that tears the wood. Also these inserts are not as sharp as the carbide you find on a router bit so again will tear the wood.

When you come to turn the rim use a tool with high top rake, one of the CCGT type tips would be a good bet or grind up some HSS.
Title: Re: A portable steam engine
Post by: Firebird on May 18, 2016, 08:26:15 PM
Hi

Thanks Mal and Jason

Whoooooooooa scrap that plan, that won't work  :facepalm:

What we have to do is cut out the curved bits of the rim  :thinking:

Mark out a bit of wood with a compass making sure the grain runs across

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160518_181326_zpse29q1zw4.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160518_181326_zpse29q1zw4.jpg.html)

Cut out with a jigsaw

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160518_182612_zpsgx7carvh.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160518_182612_zpsgx7carvh.jpg.html)

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160518_182549_zps8l7nxbh2.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160518_182549_zps8l7nxbh2.jpg.html)

Chop out 10 bits

(http://i1027.photobucket.com/albums/y335/rich_wightman/20160518_184734_zpszk4n4hnd.jpg) (http://s1027.photobucket.com/user/rich_wightman/media/20160518_184734_zpszk4n4hnd.jpg.html)

Thats the way I think. I know its a bit rough, this is just a practice piece. I need to figure out some kind of jig that will more accurately cut the pieces.

cheers

Rich
Title: Re: A portable steam engine
Post by: Jasonb on May 18, 2016, 08:36:13 PM
Rich the straight method will work fine and is a lot easier to cut the mitres, maybe just use slightly wider strips to make it easier.

If you google "segmented turning" or "segmental turning" you will see they are almost all done with straight bits of wood
Title: Re: A portable steam engine
Post by: crueby on May 18, 2016, 08:53:00 PM
Have you checked out the Horse Drawn Vehicle forum? lots of good info there on wheels, I got some good tips when I made my chariot model a couple years ago.

http://forum.scalemodelhorsedrawnvehicle.co.uk

Title: Re: A portable steam engine
Post by: b.lindsey on May 19, 2016, 12:56:51 AM
Catching back up with the build Rich. Very much looking forward to seeing how these wheels go together...the brown stuff is fun to play around with at times :)

Bill
Title: Re: A portable steam engine
Post by: zeeprogrammer on May 19, 2016, 12:58:20 AM
I never would have guess there's a forum devoted to horse drawn vehicles. Neat!

Rich...you've started something that a lot of us will learn from!

I think wood and metal go well together. I know that's blasphemy to some. Too bad.
I consider wood and metal to be natural materials. Glass and ceramics too. My problem is with plastics. Not that I don't like it either.
Title: Re: A portable steam engine
Post by: Don1966 on May 19, 2016, 01:30:40 AM
Rich glue the pieces to cardboard then cardboard to plywood and turn on lathe. Then just simply remove the pieces from cardboard after marking the pieces.

Don
Title: Re: A portable steam engine
Post by: crueby on May 19, 2016, 01:54:36 AM
I never would have guess there's a forum devoted to horse drawn vehicles. Neat!

Rich...you've started something that a lot of us will learn from!

I think wood and metal go well together. I know that's blasphemy to some. Too bad.
I consider wood and metal to be natural materials. Glass and ceramics too. My problem is with plastics. Not that I don't like it either.
Don't forget stone and bone. All materials are fun to carve, not just metal. Machining is just carving with fancier chisels.
Title: Re: A portable steam engine
Post by: Firebird on May 19, 2016, 07:41:05 PM
Hi

Thanks guys, some very useful info coming in  :ThumbsUp:

I do like messing about with wood, my recent box project http://www.modelenginemaker.com/index.php/topic,5260.0.html I really enjoyed.

It might be a few days now before anything else gets done. I'm at work until Saturday then Sunday we are off the model engineering exhibition at Doncaster race course  :whoohoo:

Cheers

Rich