Model Engine Maker

Supporting => Vehicles & Models => Topic started by: mike mott on July 11, 2019, 08:52:30 PM

Title: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 11, 2019, 08:52:30 PM
As mentioned in my other build logs I am presently working on this new little loco and this time I am starting with the boiler. Dave Watkins built and fired a small coal fired loco called Frog. that ran on 32mm gauge track. I am converting the current drawings that are featured in the book mentioned above into a set of drawings that are layered in order to isolate the various components and they then become easily scaleable.

As I am working on the drawings of the actual loco I am integrating the model components on different layers, and have made a start on the boiler with a commercial 2 1/2 inch "T" .
I was using Photo-bucket before the infamous Faux Pas and have not used them since so i am not sure about posting pictures now I did like putting them in line but it is what it is.

Mike 
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: b.lindsey on July 11, 2019, 09:44:21 PM
Looks like you are off to a fine start Mike. Will be watching along.

Bill
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 13, 2019, 12:55:47 AM
Thanks Bill.
I have been working on the design of the regulator so that from the outside it looks like the one on the full size loco, and also keeping it simple because it is a small boiler I have set it up so that the needle valve is in the bronze section in the middle of the tube with the collection at the top of the steam dome. The dimensions are for the full size loco and because this is a 1:10 scale model it makes the conversions so much easier. the collection tube is .314 diameter obviously larger that its real life counterpart. 

Mike

Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 13, 2019, 04:17:00 PM
A little bit more work. One of my concerns is the sequences of the soldering so that i don't box myself in with a joint that I cannot get to. so i am being very cautious with the steps and trying not to trip myself up.

The steam to the cylinders on a lot of these small engines comes off the top of the boiler and then through a drip feed oiler and along side or under to the cylinders. I wanted the feed to come out at the front tubeplate but did not want to fiddle with a superheater so keeping it simple and in the same position as the regulator I had to ease the flange a little to get the bushing in line. pic 1
The bushing is threaded 6x75mm I noticed that Kozo uses all sorts of different threads and not having any of the ME taps and dies I am using what I have. I will use a banjo bolt into the bushing for the steam to the cylinders. Pic 2
I had a little bit of bronze 1/2 inch rod so used it for the body of the regulator valve that sits below the dome. pic 3. I know its pushing the limits of hanging out of the chuck.
shouldered to accept the 5/16 copper tube. pic 4
Dry fitted the body into the boiler, still need to put in the hole for the collection tube. pic 5
The bushing for the backhead still need to be sorted. pic 6
Trying to decide whether to work from the bachhead to the front or the front to the backhead regarding the soldering sequence.

Mike





 
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 14, 2019, 02:39:22 PM
I just finished reading through Photo-bucket's new policy and thought I would give it a test. to see how it is different. This picture shows the sleve ring silversoldered into the firebox end of the boiler
(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_6966x1024_zpskwajnqvn.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_6966x1024_zpskwajnqvn.jpg.html)

to receive the extension to bring the commercial T up to the required length.

Mike   
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 15, 2019, 01:57:01 AM
I rethought the diameter of the regulator body and realized it could be a larger diameter so took it up to .5" and drilled and tapped it 6 x 75mm for the 1/4" copper collection tube.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7017x1024_zpszidmclnv.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7017x1024_zpszidmclnv.jpg.html)

All of the main parts that will get soldered together that will be inside the boiler are now made. I left the regulator needle long for the time being.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7021x1024_zpsoedkxny0.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7021x1024_zpsoedkxny0.jpg.html)

The regulator body dry fitted together .

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7019x1024_zpsbhndlm9k.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7019x1024_zpsbhndlm9k.jpg.html)

then dry fitted into the boiler.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7022x1024_zps0rnykb0n.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7022x1024_zps0rnykb0n.jpg.html)

now to sort out the final configuration of the regulator flange and sealing on the final backhead bush the one that is in there at the moment is just a placeholder.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7024x1024_zpspl7udcn8.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7024x1024_zpspl7udcn8.jpg.html)

Mike

 

 
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 16, 2019, 06:05:43 AM
Went to my local metal supermarket this morning and picked up a few bits, some steel for the wheels and frames and some bronze for cylinders.

first I cut a set of wheel blanks that were a bit too thick so cut a second set. It is 2 inch but needs to go down to 1.78 inches

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7054x1024_zpsguo7ovw1.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7054x1024_zpsguo7ovw1.jpg.html)

This is the first set of rough blanks, I will be able to use them for something in 3 1/2 inch gauge so not wasted.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7055x1024_zpsxyxarjo2.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7055x1024_zpsxyxarjo2.jpg.html)

I had some 14gauge cut into a strip a bit oversize for the frames.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7058x1024_zps0upyesgd.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7058x1024_zps0upyesgd.jpg.html)

Prepared the second set of blanks to be turned down to the correct diameter they are the right thickness and bored and reamed to 1/4 inch. I will make up a wheel mandrel so that  I can do the various turnings in sets.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7059x1024_zpsv6ldadfa.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7059x1024_zpsv6ldadfa.jpg.html)

Now off for a cup of tea then bed.

Mike   
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 17, 2019, 09:20:15 PM
Finished the wheels today so far. I set up the simple mandrel in the four jaw chuck and completed each turning setting for each wheel which meant a lot of switching of the wheels but ensured that on my old lathe that things were consistent.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7111x1024_zpsdztwe7mz.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7111x1024_zpsdztwe7mz.jpg.html)

I used  form tools for a couple of the operations.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7114x1024_zpsdsyqw0mr.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7114x1024_zpsdsyqw0mr.jpg.html)

Mr Brown seemed pleased with the progress.

 (https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7118x1024_zpscsyljyze.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7118x1024_zpscsyljyze.jpg.html)

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7116x1024_zpsyfqbmafr.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7116x1024_zpsyfqbmafr.jpg.html)

Cheers Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Kim on July 18, 2019, 05:18:54 AM
Nice looking wheels, Mike!
Did you put an angle on the tread?  I couldn't tell for sure from the pics.  Sometimes it kinda looks like yes, and sometimes no.

Kim
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 18, 2019, 06:37:36 AM
Hi Kim
Thanks and yes there is a 3 degree slope. The wheels are 1.756" over the flange and 1.6" at the intersection of the flange and bearing surface.

Mike

Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Zephyrin on July 18, 2019, 10:38:12 AM
Nice set of wheels,
As a gauge 1 loco builder I also use a form tools for the tread with a gauge 1 profile, and also for the rim for waggon wheels.
Looking at your boiler, I wonder if the smoke tubes are not positioned a little high, and are not likely to be above the water level ?
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 18, 2019, 03:20:58 PM
Hi Zephyrin,
That had crossed my mind as well, it is likely the reason that eventually they added the saddle tank so that the boiler could be constantly topped up. I noticed that the top of the sight glass is level or just above the top of the boiler and I wonder if the dome which is huge wasn't also partially filled with water at least to the height of the water gauge.
How would you resolve the situation?

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Zephyrin on July 19, 2019, 10:07:08 AM
I hadn't realized the huge size of the steam dome, which mitigates my reserves on the height of the tubes... in this case, if the water supply is maintained above the tubes, it will work without problems.

but otherwise, and if it's not too late, (the brazing not yet done !), I would change the arrangement of the tubes, by turning the front and back plates so that the smoke tubes are in the lower half of the boiler. the running would be much more efficient and safer.

it's mainly a question of efficiency in fact, if the tubes are not covered with water, they are totally useless, I don't think the boiler structure is really threatened, unless the burner is really very intense.
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 19, 2019, 03:38:49 PM
Good morning Zephyin.

Thanks for the advice. because I am attempting to make this model actually look like the full size loco on the outside, and I do want to have it coal fired. The run time will obviously be short.
This is a tiny locomotive in the first place. The full size loco had a small firebox as is visible in this in this picture https://commons.wikimedia.org/wiki/File:Dot_at_Narrow_Gauge_Railway_Museum_-_2010-03-07.jpg (https://commons.wikimedia.org/wiki/File:Dot_at_Narrow_Gauge_Railway_Museum_-_2010-03-07.jpg)
because of the constant diameter of the boiler I would not be able to flip the tubeplates upside down.  Dave Watkins fired a smaller diameter boiler similar design but he did have the advantage of the stepped configuration https://www.youtube.com/watch?v=DHTK5dEP9q4 (https://www.youtube.com/watch?v=DHTK5dEP9q4)
I used his drawing of the frog boiler as my guide for this one.

As it is I will have to have the fire a little lower simply because of the size of the firebox. Dave used 3 5/16 tubes and 3 1/4 inch tubes in his box , I used two  3/8 tubes two  5/16 tubes and two  1/4 inch tubes I could remake the front tubeplate and the front firebox plate and just use 1/4 inch tubes with one 5/16 and get them a little lower. I will draw the two configurations and them post them.

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 19, 2019, 04:07:51 PM
Zephryin
Here are the two drawings the first one is a trace of the actual boiler, and the second one shows two configurations for the tubes in the model boiler. the section on the left is along the same lines as the frog boiler, I actually made a mistake when drilling the holes and inserted two 3/8 tubes instead of all the top three being 5/16 and the bottom three being 1/4.
 the configuration on the right is all 1/4 inch tubes.  I am ok making a new inner set the position of the firebox has to stay where it is though.

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 19, 2019, 07:42:54 PM
Giving this a lot more thought and re reading some sections of KN Harris' book on model boiler tube sizes and grate areas. I am thinking that If I go with this design I get a better than 1/6th area of tube to grate ration the grate being 2.6 square inches and the tube through area as .4901 square inches. it should work fine. adding the brick baffle will help prevent coal going into the tubes.

There are nine tubes that are 1/4 inch in diameter and 5 tubes 3/16 in diameter. using the spacing formula in Harris' book. The grate is from 1/8 diameter stainless. I do have some thin strips of cast iron as well I could use it.

Mike
   
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 20, 2019, 04:41:52 AM
A bit more work on the frames, after marking out for the horn-blocks I cut most of the metal out with a jewelers saw.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7130x1024_zpsxitpv0pn.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7130x1024_zpsxitpv0pn.jpg.html)

Mr Brown was hanging about doing his usual inspections.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7131x1024_zpsp6lbq6cj.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7131x1024_zpsp6lbq6cj.jpg.html)

Then off to the mill to clean them up, the 4 flute mill was just long enough so that one the depth was set I could clean up all the side without changing the quill.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7136x1024_zps54n3gl1f.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7136x1024_zps54n3gl1f.jpg.html)

The holes were pilot drilled with just the centredrill first so that i was not constantly changing the bit.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7140x1024_zpsucahsvl8.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7140x1024_zpsucahsvl8.jpg.html)

I set up the dimensions from the bottom left hand corner, and carefully followed the plan discovering an error on the way, tedious work which used all of my concentration so enough for today, I can reset to 0,0 and drill all the holes once the rest of the pilots have been spotted.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7141x1024_zpsehvkbexv.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7141x1024_zpsehvkbexv.jpg.html).

More in the morning.

Mike 
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Zephyrin on July 20, 2019, 11:20:11 AM
This a lovely little loco, and a very nice model to come...
I did not have built myself a coal fired gauge1, only meths or butane fired locos, hence I will follow your way and hope to be boosted to have a go...
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 21, 2019, 09:21:08 PM
Went back to the books and have made another change regarding the tubes and firebox. I redid the calculations and have decided to go with five 3/8ths tubes which give better than 1/6th ration to fire grate. which will mean remaking the front tubeplate and the front firebox tubeplate. I will also correct the error of not having the tubes sloped.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/Dot%20slip%20eccentric%20valve%20systemx1024_zps26qvg9ux.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/Dot%20slip%20eccentric%20valve%20systemx1024_zps26qvg9ux.jpg.html)

Also have decided that for this model loco a slip eccentric valve gear might be a good way to go, I am still thinking about that.

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 25, 2019, 08:38:29 PM
I finished the holes in the main frames and have now made some angle iron from some 1/4 square and some 5/16 square. I did the milling by going down the center with two pieces clamped in the mill vice. used different cutters for the 1/4 and 5/16

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7251x1024_zpstjpkykgt.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7251x1024_zpstjpkykgt.jpg.html)

Next I hand ground the tips of a couple of old end mills on the diamond wheel to create the corner radius for the center and the outside edges.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7254x1024_zpsywhf84bk.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7254x1024_zpsywhf84bk.jpg.html)

I am pleased with the results.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7256x1024_zpsic6vilkg.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7256x1024_zpsic6vilkg.jpg.html)

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7257x1024_zpsdbrjwsxk.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7257x1024_zpsdbrjwsxk.jpg.html)

Time for lunch.

Mike



Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Dan Rowe on July 26, 2019, 01:57:38 AM
Nice Mike, you must have taken light cuts at the end as there is not much gripping power with the thin section at the bottom.

I took a different approach the last time I needed small angle iron. I used the smallest section I could buy and trimmed the backside of the angle iron and the legs saving the rolled inside edge.

Cheers Dan
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 26, 2019, 02:43:09 AM
Hi Dan
I seem to remember that. And yes I did take light cuts the main thickness of the legs is .062" and with the radius it left .031".
I stopped short of a slight taper. I was pleased that the 5/16 did not distort when I cut away the middle.


Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 26, 2019, 10:46:47 PM
My rivets came today they cost $35 US for 1000 1/16x 5/16 That seemed OK but then the shipping was $34.65 US because they ship via UPS the big shock was the additional $35 Canadian for The UPS Brokerage fee and GST So My 1000 rivets worked out at $91.94 +$35 for a total of $126 Canadian which comes to 12.6cents apiece which seems a bit outrageous.
Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: crueby on July 26, 2019, 11:28:13 PM
Ouch!! That is outrageous!
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: cnr6400 on July 27, 2019, 12:31:25 AM
Actually you did OK Mike, believe it or not. Over the last 2 years stuff I've ordered from the US ends up 4 to 5 times the US list price with all the shenanigans you mention.

$126 vs $35 is only 3.6 X list.  Still a heck of a hosing for being Canadian and buying elsewhere. Trouble is a lot of things just can not be bought here anymore. Many stores and industrial suppliers just won't bother to even look for small qty's of anything. If you wanted 100,000 rivets or 10,000 lb of steel they may talk to you.

 It's making me take the time to build just about everything from raw stock including a lot of screws and rivets for my models nowadays, and plan expensive imported parts out of the models. May do a cold heading press for rivet making from copper electrical wire one of these days. I designed lots of cold header tooling for steel bolts in industry some years ago.

I'd love to get in on a fraction of a % of the brokerage gag with UPS..... could just about afford the  :popcorn: bill for Chris' shovel build, then..... :Lol:
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Jo on July 27, 2019, 07:29:59 AM
Postage, Import duty and collecting the duty for stuff from the US is a killer for us in the UK as well :(

Even internally postage can be a bit of a rip off for example yesterday I wanted a couple of pieces of 4mm stainless bar = £0.92 ea, postage and packing £5.95  :o Looks on flea bay nothing cheaper for two bits ... So I ordered 20 from the original supplier assuming the spare might come in handy in the future. Which probably accounts for why I have large stock piles of most stuff  ::)

The one that is difficult to account for is it is often cheaper to buy and have posted something from China than it would cost to post the same item in the UK  :headscratch:.

Jo
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Zephyrin on July 27, 2019, 09:39:34 AM
My experience with imported stuffs is that the problem is with UPS, the brokerage and others "administrative" fees are always huge. You may insist for having postal service for deliveries, as fees are limited to postage and the import taxes.
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 27, 2019, 02:13:18 PM
Thank you all for you commiserations regarding this issue.
Quote
The one that is difficult to account for is it is often cheaper to buy and have posted something from China than it would cost to post the same item in the UK  :headscratch:.

Jo


It does make one wonder

Quote
You may insist for having postal service for deliveries, as fees are limited to postage and the import taxes.

With envelope size packages I do not see any reason for using UPS. An envelope is not a "Parcel"

Lesson Learned.

Jo, regarding purchasing a few more pieces than one needs right away, has always been my method and is probably why I also have a large stock of materials and fasteners. A box of 100 is usually not a great deal more money that 23 individual bolts, screws,  etc.

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: steamboatmodel on July 27, 2019, 11:04:11 PM
My rivets came today they cost $35 US for 1000 1/16x 5/16 That seemed OK but then the shipping was $34.65 US because they ship via UPS the big shock was the additional $35 Canadian for The UPS Brokerage fee and GST So My 1000 rivets worked out at $91.94 +$35 for a total of $126 Canadian which comes to 12.6cents apiece which seems a bit outrageous.
Mike

I never use anyone who ships by UPS (United Pirate Service), the last time they wanted $50 Brokerage fee on a duty free item that only cost $100.00. I refused the parcel and the driver tossed it so hard into the back of the truck that parts were damaged. I contacted the seller and explained what had happened, they said if I would pay the difference between UPS and USPS (United States Postal Service) they would send it that way. I agreed and they sent it by USPS, which was faster then UPS, the problem was the package had been damaged by UPS, this was noted by the seller and USPS and myself. The bow of the hull and deck had been split, I emailed the seller photos of the damage and the condition of the package. They sent me a replacement hull and deck.

Gerald.
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 28, 2019, 05:13:46 PM
This morning i had to make a 1/8th diameter 78 Degree countersink for my tiny rivets I put the angle on the end of a bit of Drill rod (silver steel) then carefully filed the teeth with some watchmaking files with a #8 cut, hardened and tempered it.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7279x1024_zpsvb9o32mm.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7279x1024_zpsvb9o32mm.jpg.html)

Ran it at a slow speed with some tapping cutting oil

It cut better than the small 1/4 inch commercial one which was too big for the inside of the Angles, I was a very happy camper.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7283x1024_zpskmhuuk7b.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7283x1024_zpskmhuuk7b.jpg.html)

The first set was cut a tad too deep so backed of on the second set by .010" and they are good. the next picture shows the first set.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7288x1024_zpseaujp3lb.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7288x1024_zpseaujp3lb.jpg.html)

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 31, 2019, 04:45:27 AM
I have wanted a new vice for a long time, since about 1980 in fact. Well today was the day because I had put the behemoth rotary table up on the mill again I think it will stay there now or until I get some sort of scissor thing to slide it off. It weighs about 100lbs. My old vice was big and getting a bit beat up so got this one at Busy Bee Tools.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7302x1024_zpsyp4fj2za.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7302x1024_zpsyp4fj2za.jpg.html)

Also a set of parallels to go with it. The hornblocks for the loco are fairly complex so am working them in pairs and have begun my hand cnc milling (crank N crank)
The calculations were a bit time consuming but they worked well for the first stage.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7310_zpsqgctdees.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7310_zpsqgctdees.jpg.html)

After checking the opening in the frames for the front and rear discovered a 6 thou difference in the width of the opening..... How did that happen?

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7303x1024_zps1zh1shvc.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7303x1024_zps1zh1shvc.jpg.html)

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7304x1024_zpsaeove7fp.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7304x1024_zpsaeove7fp.jpg.html)

Made the adjustment for the difference on the second set, and am pleased with the days effort I placed the blocks into the openings and held them in place with a couple of compression springs while I contemplate the next move.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7308x1024_zpsrjuzvrko.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7308x1024_zpsrjuzvrko.jpg.html)

Mike





   
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: crueby on July 31, 2019, 04:54:11 AM
Great results on your Count Number Cranks efforts!!


 :popcorn: :popcorn:
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on July 31, 2019, 10:29:16 PM
Thanks Chris, I am getting a stiff neck though. Stage 2 completed while in the vice I opted to remove most of the actual opening for the bearing surface I can remove the rest when it is flipped over again for the shaping of the top.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7319x1024_zpsn64k4jso.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7319x1024_zpsn64k4jso.jpg.html)

Then stage 3 removing the area around the bearing area.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7311x1024_zpsldavtxgq.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7311x1024_zpsldavtxgq.jpg.html)

Mike 
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on August 01, 2019, 03:33:31 AM
Well it happened I kissed the brand new vice  :censored: on the last hornblock roughing out today! on the last hornblock i had increased the depth of the cut from .030" to .050" it was cutting well but for some reason the cutter crept out of the Clarkson auto lock collet it was on the last .010" cut I had not noticed the creep until it hit the vice :censored: :censored: needles to say I was mad at myself.

Mike

Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on August 02, 2019, 05:14:51 PM
Moving forward I needed to mount the hornblocks to the frames before finishing the opening for the bearings. first order of the day was to make some steel 1x72  and 0x80 flat head screws to clamp the hornblock to the frames. I have quite a large stock of 3/16 hex steel but no small diameter free machining steel so since there are only a few I used the 3/16 hex stock. it machines beautifully.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7350x1024_zpssxolkm4o.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7350x1024_zpssxolkm4o.jpg.html)

After parting them off I used the jewelers saw (10 strokes) to cut the slot.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7337x1024_zpsuem8ansb.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7337x1024_zpsuem8ansb.jpg.html)

Next the frame and hornblock were clamped with enough clearance to be able to remove the remaining metal for the bearing to fit. I set the stops on the table to rough out most of the material then eyeballed the final cuts leaving a thou or two to clean up later.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7353x1024_zps52iikeyb.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7353x1024_zps52iikeyb.jpg.html)

Overall I am happy with the result,

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7355x1024_zpsv9fc3zvf.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7355x1024_zpsv9fc3zvf.jpg.html)

Time for some breakfast.

Mike

Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on August 03, 2019, 03:32:45 PM
The  next task was to clean up the bearings, so I set them back to back and returned them to the mill, and using a 7/16 4 flute end mill skimmed the 0penings .002" at a pass to bring them all in "perfect" alignment. the forward set are .003" inches wider opening that the rear.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7371x1024_zpsql1pba0x.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7371x1024_zpsql1pba0x.jpg.html)

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7373x1024_zpsucut87cr.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7373x1024_zpsucut87cr.jpg.html)

Then did a quick reset to see how it all fits together a couple of shorts of some brass rod to hold up the wheels temporarily and the frame sitting on some wood blocks.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7375x1024_zps8crhflea.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7375x1024_zps8crhflea.jpg.html)

Them I wanted to get an impression of the whole with the boiler as well.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7379x1024_zpsyionam9p.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7379x1024_zpsyionam9p.jpg.html)

Mike 
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on August 03, 2019, 04:17:22 PM
Having just read the following I shall refrain from posting any more pics of the on ging construction of this and just put a few pictures of the finished product here later.

Quote
Gary, the site policy is not to allow Locomotive builds. You will recall that at the time John explained it to you:

Quote from: Bogstandard on April 03, 2013, 08:25:00 PM

    Unfortunately Gary,

    A while ago, the Admin on this site decided to not let builds of locomotives go ahead on here as it was thought that there are enough loco building sites on the interweb that they can be posted on and we didn't want to stray very far from our commitment to model engines.

    We allowed ones that were already in motion to continue because they were not starting from the very beginning. The same goes for model boats and aircraft, it is OK to show the engine builds that goes into them, but not the rest that goes with it, unless it is a very abridged post with only a few photos, with no construction details.

    John


What MK is doing here is in line with that policy  :ThumbsUp:. He is providing a very abridged post with a few photo's of his excellent model of William, but he is not going into all the machining details that we encourage for the construction of model engines.

Jo

Apologies for not following the rules.

Mike

Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Kim on August 03, 2019, 04:58:35 PM
Hi Mike,
That may have been the case when the forum was originally started, but I believe that was the specific reason that the "Vehicles & Models" subforum was created - so that members had a place to post these kinds of builds.  Locomotives, traction engines, any manner of engine-powered vehicles.  And if people don't want to follow along with loco builds, they can choose not to. 

Please continue to post your Peacock build.  I for one am quite enjoying following along!

Kim
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Roger B on August 03, 2019, 05:33:05 PM
Mike, there are plenty of locomotives, traction engines, complicated steam tractors and diggers on the forum. Please keep posting  :)
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: crueby on August 03, 2019, 06:36:22 PM
Absolutely Mike, please keep posting, that is not currently policy here!
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: b.lindsey on August 03, 2019, 07:43:00 PM
Definitely keep posting Mike. I have been following and enjoying your build also.

Bill
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Jo on August 03, 2019, 08:02:13 PM
Keep posting Mike  :)

In the early days when Bogs was an admin there was a reluctance to include Loco builds as they tend to go on for decades  :Doh: and there are other sites that do Loco builds so he was reluctant to have them here. But time moved on and we made this section so that when someone chooses to make other types of models they can still be a part of our happy friendly forum   ;)

Jo

Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on August 04, 2019, 03:17:37 AM
Back By popular demand :whoohoo: :cartwheel: Sorry I couldn't resist. Thank you Kim, Roger, Chris, Bill, and Jo, for your support. I have been slowly going through older threads, and found the post that I quoted, and that is why I thought that I was not following the rules. There is so much incredible knowledge on this forum. I keep filing things away in the back of my mind. I do have some plans for stationary engines, also. so will get around to some of them in the future.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7386x1024_zpsmqu5shoi.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7386x1024_zpsmqu5shoi.jpg.html)

This steam driven Deal sawing machine is intriguing.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7387x1024_zpsvotrqqwi.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7387x1024_zpsvotrqqwi.jpg.html)

And I have the three sheets in the set of this engine.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7390x1024_zpsqwlennwf.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7390x1024_zpsqwlennwf.jpg.html)

Today I made a start on the wheel bearings and I cut some blanks off the bar of bronze, I found that it had completely different machining properties to the brass. I had to slow down the cutter speed considerably and the tool had to be absolutely sharp. The one that cut brass well enough seemed to push the bronze so that is why I changed cutters for a brand new one. Is this a common attribute of Bronze?

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7383x1024_zpsq4qefpax.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7383x1024_zpsq4qefpax.jpg.html)

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7384x1024_zpsai6ekw3n.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7384x1024_zpsai6ekw3n.jpg.html)

I still need to finish the other three blanks then to make the cut out and insert the bottom half like this, this is a standard design of course.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7385x1024_zpslpmyhtj6.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7385x1024_zpslpmyhtj6.jpg.html)

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: crueby on August 04, 2019, 03:45:13 AM
The cutting properties of bronze varies a lot by which alloy.  Bearing bronze is closer to brass, while phosphor bronze can be very grabby and hard, lots of alloys with very different behaviors.




Those other engines are quite interesting, hope you build them in the future!
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Jo on August 04, 2019, 07:15:13 AM
Mike, I see you have the three drawings of the Clarkson Steeple Engine (yes we know it is a table engine but that is what they called it  :Doh: ) . In years gone by this was a very rare and desirable model but Clarkson's castings were renowned to have hard spots.

A couple of years ago Blackgates finally managed to get the rights to enable them to start selling these castings again. In theory the sets of castings should be available again - in practise I know there has been a devil of a problem with Foundries and them having to upgrade to meet new health and safety requirements.

Jo

P.S. I have one of those original sets of Steeple castings, complete with hard spots  ::)
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Zephyrin on August 04, 2019, 12:30:54 PM
Yes, hard bronze may awful to machine, and absolutely sharp tools are a must...you may add also cutting fluid, as parts become very hot under the tools; and especially the drills are easily jammed in their holes.

some play is important in the axle boxes in their hornblock to avoid locking of the wheels on the track.
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on August 04, 2019, 01:24:52 PM
Quote
P.S. I have one of those original sets of Steeple castings, complete with hard spots  ::)

Jo, just looking at that set of castings is whetting my appetite. Not having the financial resources to purchase such a set and also not having or knowing anything about CNC the first thing to cross my mind was I wonder how difficult it would be to fabricate the main parts from sheet and plates silver soldered together?

Zephyrin, your comment about the cutting fluid was helpful and yes I know that the bearing need a bit of play.
As a young boy being up close to full size steam engines, I often wondered about the clank clank of the things when running slowly in the yards at  Old Oak Common and Willesden sheds. of course it was the looseness of the things like the bearings that caused them. I do have a tendency to try to make everything nice and tight tolerance wise, but with the running gear there has to be some slack or as you say it will jam and lock.

Mike
 
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Jo on August 04, 2019, 09:22:47 PM
Quote
P.S. I have one of those original sets of Steeple castings, complete with hard spots  ::)

Jo, just looking at that set of castings is whetting my appetite. Not having the financial resources to purchase such a set and also not having or knowing anything about CNC the first thing to cross my mind was I wonder how difficult it would be to fabricate the main parts from sheet and plates silver soldered together?

There are easier Table engines to make out of Barstock. Like the Waller that Ramon did a very nice version of. https://www.pollymodelengineering.co.uk/sections/stationary-engines/anthony-mount-models/wallers-Table-Engine.asp

Jo
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on August 06, 2019, 03:42:29 AM
Progress on the bearings today, helped along by Mr Brown.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7398x1024_zpseeyh9vsn.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7398x1024_zpseeyh9vsn.jpg.html)

I used a combination of the 4 jaw chuck on the lathe and the mill to square up the lower inserts ready for drilling for the pins and then drilling and reaming the holes for the axles.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7399x1024_zps4ctchece.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7399x1024_zps4ctchece.jpg.html)

Here Mr Brown is doing a final push .

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7402x1024_zpswggwgypz.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7402x1024_zpswggwgypz.jpg.html)

mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on August 07, 2019, 06:46:32 PM
The bearing blocks have reached a point where I can leave them for now. first the keeper pins were installed these are .060"

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/Capture%207403_zpsn3amj1hc.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/Capture%207403_zpsn3amj1hc.jpg.html)

Next the axles holes were bored out by drilling first then reaming them out with a 4 flute 1/4 inch end mill.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/Capture7406_zpsbwgregz3.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/Capture7406_zpsbwgregz3.jpg.html)

I faced off the extra in the four jaw chuck as this seemed to be a lot simpler than using the mill also it was faster.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/Capture7413_zpspn3aaknh.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/Capture7413_zpspn3aaknh.jpg.html)

A test fit with my place holder axles.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/Capture7416_zpsownhmlho.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/Capture7416_zpsownhmlho.jpg.html)

Next was to see how easily it all came apart, first the pins were pushed out these are a slide fit.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/Capture7417_zpsjvqc5sha.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/Capture7417_zpsjvqc5sha.jpg.html)

Then the bottom part was twisted out with the brass axle.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/Capturex7419_zps2x69flvw.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/Capturex7419_zps2x69flvw.jpg.html)

All in all I am happy with the results.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/Capture7420_zpsargkc8dn.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/Capture7420_zpsargkc8dn.jpg.html)

I have to take a short break from the model to do a small brown project for a local group, which I hope ti complete in a few days.

Mike




Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on September 16, 2019, 04:34:37 PM
Beginning work on the cylinders, I had some small bits of bronze left over and also some 3/4 bar bronze so began with a fabrication that involved silver soldering, not my favourite task.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7678x1024_zpslkvg8lxa.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7678x1024_zpslkvg8lxa.jpg.html)

I had trouble getting the parts soldered together, and thinking down the road decided to change my approach.

I was fortunate to be handed a 1 foot length of 2 inch 660 bronze bar when I had just paid for a 1 foot length of 1 1/2 inch piece of 660 bronze bar, I did not realize the mistake until I got home, by then it was too late to worry about it. Who knew!

I faced off 2 blanks the width of the max that I needed then sliced off a chord so that I could have a datum face.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7686x1024_zpscphfjsog.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7686x1024_zpscphfjsog.jpg.html)

Next I then laid out the rough cuts for the bandsaw to have less milling to do.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7687x1024_zpsabtg5kwe.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7687x1024_zpsabtg5kwe.jpg.html)

After a lot of careful milling and keeping my fingers crossed I have a couple of blanks ready to do all the boring and porting.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7688x1024_zpsozf4vfvm.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7688x1024_zpsozf4vfvm.jpg.html)

Because the slide valves share the common steam input chamber I will add the other plates around to create the steam tight chamber which will also hold the left and right cylinders together.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7694x1024_zpsnioyuazv.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7694x1024_zpsnioyuazv.jpg.html)

Last picture shows the port faces that are vertical which will get lapped after all the drilling.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7691x1024_zps8u0ky28n.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7691x1024_zps8u0ky28n.jpg.html)

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Roger B on September 20, 2019, 11:48:10 AM
Good progress  :ThumbsUp:  :ThumbsUp: You were lucky with that piece of oversized bar  :)
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on September 21, 2019, 03:43:31 AM
Thanks Roger, I have made a little more progress on the cylinders the valves are vertical like the ones that were mentioned about the Stanley Steamer.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7723x1024_zpsa75sec7n.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7723x1024_zpsa75sec7n.jpg.html)

I am building up the cylinder block with all the sections bolted together.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7725x1024_zps4nkoqyzz.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7725x1024_zps4nkoqyzz.jpg.html)

I started on the front faces today, it took a fair bit of thinking to figure out the sequence. first I drilled and tapped all the holes in the block then switched out the vice and centered the rotary table mounted the 4 jaw chuck set the block and squared it to the x y axis of the mill. then offset it to cut the bottom curve.

(https://i5.photobucket.com/albums/y169/my30mm/0%20Beyer%20peacock/IMG_7729x1024_zpspltxqdil.jpg) (http://s5.photobucket.com/user/my30mm/media/0%20Beyer%20peacock/IMG_7729x1024_zpspltxqdil.jpg.html)

Mike 
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on September 21, 2019, 02:17:49 PM
I finished roughing out the right hand cylinder cover, the outside corners were rounded with a couple of different grits of sanding sticks. I received my order of tiny high temp o rings yesterday, so I can seal the valve stems.

mike

 
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: crueby on September 21, 2019, 02:37:44 PM
Coming together great! Interesting how you have pieced up the cylinder/valve block - how will you seal the joints?
 :popcorn: :popcorn: :popcorn:
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on September 21, 2019, 03:52:08 PM
Crueby thanks, I am going to use a combination of paper gaskets, the top plate is still missing for the exhaust outlet flanges and the inlet flange. I might also need to use some high temp silicone.

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on September 22, 2019, 02:09:34 PM
I finished shaping the front covers, on the original these were not actually separate parts but were integrated as part of the casting, only the backs were removable, so the attachin screws will be flat head countersunk ones so that they will not be as visible on the model.

mike

Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on September 23, 2019, 05:33:28 AM
Today I worked on the valve rod gland retainers and the studs for the piston gland retainers. Also made a few 1x72 hex bolts I did not have any 1/8th hex so filed them up out of some 3/16.

Mike

Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on September 27, 2019, 05:47:39 AM
I decided to remake the front cylinder covers there were just a few too many little compromises.  I needed to make a cutter also so that I could create the radiused recess around the gland boss. The other thing was to make the piston rod .093" instead of .125" in real life the piston rod is 1 1/8th inches and at 1/10 scale 1.125" is .1125" so i opted to go smaller rather than bigger, I know that the correct size is pretty close to 7/64ths but I have O rings that fit the 3/32. By going a little smaller it gives me a little more material for the threading and the retaining flange.

I had some 1/2 inch drill rod so threaded the locking end 1/2 x 20 then shaped the cutter profile on the lathe and then freehand ground the teeth, then hardened it. did a test cut, then worked on the new covers. Then a lot of filing with a rat tail file and polished it up with some fine wet and Dry.

Mike



 
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Admiral_dk on September 27, 2019, 11:13:03 AM
Looks like you are making good progres Mike  :ThumbsUp:

I'm just quitely following along  :cheers:   :popcorn:
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on October 04, 2019, 04:39:57 PM
Have done a lot of thinking about the cylinders and have stared over yet again. I've heard it said that the journey is the reason and not the destination is why we do stuff  :shrug:
So having one of those dog with a bone streaks in my nature here are some new pictures of my time at the workbench, mill, lathe, and computer making , drawing redrawing going "Aha now I get it" and so forth. when all theses parts are made they will be soldered together.... how... I'm thinking about that!
7809 some 1/4 bronze plate cut up on my 20 inch bandsaw
7810 preparing the bronze to become end plates for a simulated casting
7811 checking sub assembly
7815 fitting and checking after boring a .031 recess into the plate
7818 checking the fit into the frames with the cylinder tubes held in place by the end plates
7823 the valve port block seated in /030 grooves cut into the end plates
7824 holes in rear plate for access to the D valves and also the pistons
I am now sorting out the top and bottom plates that will form the completion of the main block, there will also be a couple of slall additional tabs to form the flanges to attack to the steel frames with bolts

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Kim on October 04, 2019, 05:19:17 PM
Very nice!  And it fits right in there where it's supposed to :)
Kim
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on October 04, 2019, 05:44:59 PM
Thanks Kim, the proof of course will be in the pudding, or is that cookies with this crowd?

mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: ddmckee54 on October 04, 2019, 09:37:05 PM
Why not do both?  You can have Cookies n Cream ice cream, why can't you have Cookies n Pudding?

Don
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on October 05, 2019, 12:10:31 AM
Good point! I often have dessert before my main meal, or even just dessert. Cookies don't last in my house they get inhaled  :lolb:

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Zephyrin on October 05, 2019, 07:44:29 AM
good work with the home made cutter, I agree that it is very pleasant to see how these mill bits are efficient.
I hope you could recycle the first batch of cylinders in another project, all that work and brass !!!
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on October 05, 2019, 03:43:09 PM
Thanks Zephyrin, I find that sometimes the satisfaction of making a special tool to be as rewarding as the project the tool is for.
Yes I will be reusing the cylinders I will however separate them and use them in a more conventional way on another small loco.

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on October 08, 2019, 03:47:45 AM
Progress is steady on the new configuration. The next task is to set the holes for the steam inlet to the valve chamber and the exhaust ports from each cylinder. the last piece to make for the cylinder assembly is the front valve cover and the cylinder covers.

Mike

image 7866 all of the gland retainers are now fabricated and dry fitted to the front plate
image 7874 overall view of chassis to date
image 7877 close up of the cylinder assembly so far.
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on October 12, 2019, 10:58:05 PM
I have made some progress on the cylinder parts still picking away at the many tasks it seems. The flanges that are next to the frames serve to hold the lot together when it is not in the frames which will make the soldering that much easier.


Mike

Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on October 15, 2019, 12:35:15 AM
A bit closer to the big soldering day, I finished making the exhaust flange the copper will get cleaned up after the flange is soldered to the body.  The inlet flange is also complete the studs are 1x72 in the inlet flange and 2x56 on the exhaust flange. the ports have also been bored and set up to mate with the cylinder tubes. once the cylinders are soldered together I will set up the boiler support plates so the the holes for the exhaust and inlet can be drilled in the smokebox.

Mike

Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on October 16, 2019, 03:35:34 PM
I can see by the numbers that many are have a look in to see how I am doing I appreciate that.
The interesting thing is that I sometimes make the most unthinking colossal mistakes and yesterday was one of those days Because of the nature of this part (cylinders) I have been worried about the assembly procedure and the fact that I need the parts to hold pressure in order for the thing to actually work....I haven't even got to the valve timing yet.
So, on Monday evening I went out to the shop to do some shaping of the bottoms of the plates I shaped the bottom curve on the front plate first because I had planned on soldering that first.
If you look carefully at 7966 you can see that there is a couple of wedges of bronze silver soldered to the top of the assembly the inside edges need to be filed down to match the cut out yet, I was really pleased with the fix and had spent about an hour preparing for the next set of elements to be soldered to the block. setting up and soldering this had taken the better part of the morning. The first part was to shape the curve onto the bottom because I had the night before put the curve on the top instead of the bottom. I was annoyed with myself for the silly mistake and so fixed it first thing and because the rest was going to be done with the high temp soft solder, I decided to silver solder the wedges on. The next picture 7965 shows it more clearly

It was close to lunch time and Judy came in and I was showing her how it all fitted together because she wanted to know where it fit on the model. I began putting the rest of the parts together holding the assembly to slide the flanges on which holds the plates together I realized I had completely screwed up.  The next picture (Rear plate Mistake) shows the problem in A the wedges are highlighted, BUT it is upside down!!! B shows that I had not only filed the new shape on the bottom but then filed off the correct curves and rebuilt it to be square leaving the first error intact. I said a few words loudly that cannot be repeated, and felt absolutely stupid.... how could I have made such a mistake again? Lunch was not spoiled however I was quiet! Judy bless her said "you will sort it out" and added "Perhaps because there are so many parts you should put a mark to show up on the different bits. Good advice for sure.
In C you can see where the block had to be machined to remove the material outlined by the red lines. to save this work I needed to actually now use this assembled group upside down because I had also soldered the valve block in facing the wrong up side.
The next picture 7969 A bit of fiddling with packing pieces and the deed was accomplished.
Next, I was able to add the top and bottom plates to enclose the steam chamber. I began fitting and checking 3 times before doing any more soldering. The next picture 7970 shows the assembly now becoming a substantial block.

Before the back plate can be soldered to the assembly I need to make and fit the valve cover plate. I used the rear plate as a guide for drilling the holes in the cover after shaping and fitting the cove into the hole I tacked them together with ACC glue then spotted through all the holes. The holes in the cover will need to be opened up to slide over the studs which will be threaded into the rear plate of the cylinder assembly.
I'm getting there! slowly.
You will notice in the last picture 7973 the felt marker T on the valve cover plate. it is always advisable to follow good advice I think. the next task will be to make and fit the 12 1x72 studs before soldering the plate to the cylinder assembly tapping through holes is so much easier than tapping blind ones.

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: crueby on October 16, 2019, 05:41:54 PM
Yup - been there! Now I try and remember to label or number-stamp the mating parts.
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Admiral_dk on October 16, 2019, 08:14:14 PM
Quote
The interesting thing is that I sometimes make the most unthinking colossal mistakes

Happens to me a lot more often than I care to think about  :hammerbash:  even if I usually are very good at doing something, it only takes a number of weeks not doing it, and I'm back to making big very annoying mistakes  >:(  :-X

At least you got an idea about how to solve this one + another to maybe avoid too many in the future  :cheers:
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Kim on October 16, 2019, 08:45:44 PM
I'm a member of this club too.  :embarassed:

I always try and remember to mark my parts (top, bottom, left, right, etc.).  But even with that, I'll forget to notice it in the heat of the battle.  And when I get to fitting it up, the part is now upside down!  Sometimes I can just go ahead and use it that way (change the markings :)) and sometimes, I gotta fix it.

But I KNOW that marking my parts have helped me catch errors many times before they were committed (best case) or to catch an error before I get too far along.  And as we all know, the later you catch an error, the more expensive it is to fix!

Mike, you're Cylinder assembly is looking great!  It is well worth the extra time and effort you've put into it  :ThumbsUp:
Kim
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on October 16, 2019, 11:07:22 PM
Chris, Admiral, and Kim Thanks I don't feel quite so bad now, so it is not just me. I am busy making 1x72 studs right now before I attach the rear plate to the assembly.

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on October 22, 2019, 05:38:15 AM
Reached a small milestone and the cylinder "casting" has now been completed. ready to move on the making and fitting the pistons and the D valves. The first picture shows the slow replacement of the temporary studs with the proper ones machined up with the un-threaded portion in the middle.

Mike

Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Kim on October 22, 2019, 05:54:47 AM
That's looking pretty sharp there, Mike!  :popcorn:
Kim
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on October 28, 2019, 04:57:16 AM
Thanks Kim.
I have been working on the slide valves and the valve rods, tricky little blighters. 8054 shows the taper pin reamer reaming out the hole for the keeper pinned to the valve shaft.
picture 8047 shows the box of taper pins that i have had for must be 30 years now I don't use many of these but they work really well.
Picture 8049 shows the pin seated and trimmed to length set into the D valve.
8070 shows the valves in the common steam chamber.
8076 the slide bars are now trimmed to length and width. The ends of the valve rods were initially threaded 3x48 but they were really difficult to feed through the O ring in the gland bosses from the back end. so I re-cut them to be 2x56 which made all the difference. next I will make the valve rod ends that will connect to the radius rod.

Mike 
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on November 02, 2019, 02:27:12 AM
work progresses on the springs and hangers in order to set up the axles and then the eccentrics. I used silver solder to build the top part of the springs as these will not actually function as operating springs a miniature compression spring will be hidden within the hornblocks. I used a third hand to do the accurate soldering and filing buttons to make the hangers after drilling the holes in some .075" brass sheet. the springs will be formed from leaves of .025" sheet brass.

Mike

Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Flyboy Jim on November 02, 2019, 12:54:14 PM
Nice work Mike.  :ThumbsUp:

I'm guessing that your "3rd hand" didn't come from Harbor Freight.  :Lol: Did you make it yourself? It's beautiful!

Jim
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on November 02, 2019, 01:04:03 PM
Hi Jim yes I did make it myself and it has an assortment of different holding devices. I had one of those alligator clip types and fount it to be less the adequate for precision work. So designed one that could be set and locked then rotated at the vertical post. I have used it a lot with very small parts soldering with the hot air soldering tool.

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Flyboy Jim on November 02, 2019, 01:58:57 PM
Hi Jim yes I did make it myself and it has an assortment of different holding devices. I had one of those alligator clip types and fount it to be less the adequate for precision work. So designed one that could be set and locked then rotated at the vertical post. I have used it a lot with very small parts soldering with the hot air soldering tool.

Mike

Fantastic! I love shop made tools and fixtures. I've made a few simple ones and it's really rewarding to use them.

If you ever make another "3rd hand" it would certainly be worth a build thread.  :popcorn:

Jim
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Zephyrin on November 02, 2019, 04:36:53 PM
this third hand is a beautiful tool, certainly quite pleasant to use...
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on November 07, 2019, 04:16:58 AM
Reached a milestone today I finished the difficult parts of the spring assemblies and the suspension is small but enough to deal with the sorts of irregularities that the loco might encounter. A rework of the leaves so new strips cut that are a tad narrower. The saddle for the leaves was machined out of some hard brass. the saddles were milled as a block and were then cut apart. They were cut with the fine blade in the jewelers saw and thankfully I was able to cut the three cuts without breaking the blade. The saddles were then cleaned up on the mill. All the parts were then assembled under the superintendence of the Foreman. Now I can work on the proper axles and get the wheels finished then the eccentrics.

Mike

Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Kim on November 07, 2019, 06:21:21 AM
That looks really nice, Mike!
But are you going to be able to see all that beautiful work with it back there so far? Seems like it will be all covered up by the boiler?
Kim
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on November 07, 2019, 03:02:41 PM
Kim that is an interesting question. Only yesterday I mentioned to my wife that I was doing the same thing that the model-makers who build those incredible 3 masted sailing ship models like the Victory who spend hours getting all the details correct and all the framing and knees etc as accurate as is humanly possible and that a great deal of that work will never ever be seen again. I guess anyone who takes on the challenge of building an "accurate" model (there are always compromises of material choice and scale issues) The journey is the most important aspect of the work for me, can I achieve what I am attempting? there are disappointments along the way and restarts and "aha moments" when things go better than expected. In the end I know that they are there and that is what really matters. I did my best and the next work will hopefully be better executed from what I learned on this journey.

Thanks for looking in and your question.

Mike   
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Kim on November 07, 2019, 10:32:41 PM
Yes, I understand what you mean.  You know, whether or not it can be seen. And as you said, the fun is in the doing :)
Beautiful work, regardless!
Kim
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: scc on November 07, 2019, 10:49:43 PM
Beautiful work Mike   :popcorn:  Terry
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on November 11, 2019, 12:58:29 AM
Thanks Terry.
I just finished making the most expensive 0x80 bolts they took me way too long to make but I do have the satisfaction of making them myself. I needed 14 bolts to bolt the Cylinder set to the frames they are .25 inches long. circled on IMG 8189 Until reading on Jo's thread about making studs and bolts in 303 stainless, I had shied away from stainless unless I absolutely needed to use it. Perhaps I have had some difficult stainless in the past. So I had some 1/8th stainless rod that I had picked up at the hobby store, and thought I would try it for the 0x80 bolts. I don't have an indexing head but I do have a small rotary Table after a lot of thought I began with the turning aspect of the work and found that the stainless machined very nicely.  IMG 8193 I was able to reduce the diameter in 2 cuts to get the .060 diameter then I threaded them and parted off the screws ready for cutting the hex on the head. IMG 8195 I used a hex bodied pin vice in the small milling vice at the indexing head and set up the micro mill head on the big mill and cut the hex with a small bur like cutter. IMG 8197, IMG 8198 Because the tolerances were quite small and the pin vice is not exactly a precision instrument I needed to use my hearing to reset the vertical depth. so as soon as the sound changed I reset the dial and then taking .001" cuts took off .006" from the body of the head. Retracted the cutter rotated the pin vice and cut the next face, and so on. IMG 8200 and IMG 8121
There is a definite satisfaction when things go well.

Mike

 
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Mcgyver on November 11, 2019, 12:44:39 PM
I like the indexing method....simple and clever
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on November 12, 2019, 02:04:49 AM
Quote
I like the indexing method....simple and clever

Thanks, today I started on the eccentrics that will get pinned to the axle. first i turned down some 3/4 mild steel to .650 then using the parting tool indexed across to set the disc positions for the cutting of the shoulders to leave a .050 x .025' rib. then using a waste chuck they were given a final true up on the faces and a .185" hole bored. Next I will set up the waste chuck in the 4 jaw to bore the rest of the hole out by centering and indexing over .078" and using first a 3/16 end mill then a 5/16 to open it up then bore it out to the final size for a tight slide fit on the axle. There are probably easier ways to do this however this seems like it will work.

Mike     
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Kim on November 12, 2019, 05:12:03 AM
Some nice bolts you made there!  Yeah, a lot of work for those little guys!
Kim
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on November 15, 2019, 09:04:07 PM
Moving right along on the eccentrics. first I machined up some bronze that started out life as a threaded part of a large valve that I salvaged in the early 70,s after cutting a short length off and cleaning it up I parted off 4 discs that were .120" thick for the big end of the eccentric rods.  These were then cut in half with the jewelers saw and milled flat to get soldered back together. After cleaning them up I set them up in the mill to rough shape the parts in order to drill the bolt holes and to bore out the centre to the correct diameter. I had originally thought about putting a groove into the end but after spending half the morning making a grooving tool and then cutting the groove I had no way to check it. Since the pair of rods are side by side I realized that I only needed the lip on one side and that also allowed me to turn the inside to the correct Diameter and to be able to check it.  Next the steel eccentrics were set up with the waste chuck in the 4 jaw and the offset hole bored out and reamed 5/16. The next task is to drill the straps for the 0x80 stainless bolts that will hold it all together. and now i am asking myself why I did not make these bolts while I was set up last time.

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Flyboy Jim on November 16, 2019, 03:06:30 AM
Nice machining Mike.  :ThumbsUp: I always enjoy seeing parts like these made.

I keep seeing your depth micrometer showing up in the pictures. I can see myself having one of these in the near future.  :)

Jim
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on November 16, 2019, 07:12:04 AM
Thanks Jim, The depth micrometer was a gift from a friend who retired from an engineering job where he had to inspect a lot of stuff. I have the complete box set with different lengths of probes up to 12 inches in 1 inch increments it was a great gift.

A bit more progress on the eccentric straps, I broke a blade today cutting the bottom curve. So now they are all roughed out and the joining bolt holes drilled. I have made the bolts for the first one and actually filed the heads which I made the next size down so in fact are the correct size for the 0x80. the 0x80 heads on the chassis bolts are the next size up. just three more to go.

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Dan Rowe on November 16, 2019, 02:20:45 PM
Mike,
Nice work...... :ThumbsUp: :ThumbsUp: What is your plan to attach the eccentrics to the axle.

Cheers Dan
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on November 16, 2019, 03:41:37 PM
Hi Dan, regarding attaching the eccentrics. It is something that has been on my mind for a while because they are so thin. My first thoughts were to use the tiny taper pin through the short distance but that has some problems. The second thought was to just loctite them on. Third thought is to set up a jig to fix the eccentrics together in pairs (they are back to back on the loco) at the 104 degree advance for them from mid gear, and soft solder them together. Perhaps the best would be to set them in pairs onto a 5/16th sleeve. Then instead of the shouldered axle just use a 1/4 shaft so that the 5/16 shouldered sleeve can be set with a grub screw. that way I would be able to set up the valve timing after the wheels have been quartered. It is because I am trying to make all these parts look like the original loco and not make them in the traditional model loco way, that is creating my challenges and also my overall lack of knowledge in building these things. I will do a small drawing of the sleeve idea.
That said I am having fun sorting all this out.

Mike       
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on November 16, 2019, 04:24:15 PM
Dan the following two pics show the main axle. The plan view of the eccentrics show that they are adjacent to each other. The capture plan axles show the axle as drawn on the original blueprints from 1886, The capture eccentric sleeve proposal shows the sleeve in red, if I did it that way I could loctite the whole left or right sets in the same way that the wheels are done I could set them up on the quartering jig before doing the wheels.

Mike   
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on November 17, 2019, 06:32:09 PM
Following along with Dan's question and revisiting Chris' Marion winding engine in the Marion build looking at how Chris made the axle for it out of the C1144 stress relieved steel, I have decided to have a go at making the rear axle in the same way. tomorrow I shall see if my local metal supermarket has any C1144 This drawing shows the centers for the two sets of eccentrics,
the second drawing shows a better resolution of the axle than the one from which I did my original trace for the eccentric rods, it appears that the eccentrics were pinned to the axle with a key-way.

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Dan Rowe on November 17, 2019, 07:03:07 PM
Mike, The eccentrics on a Shay are keyed to the crank. That is how I plan to make them when I get to that part. Then never a worry of a tiny grub screw coming loose.

Cheers Dan
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on November 24, 2019, 10:43:33 PM
While working on making the stainless 0x80 bolts for the arm of the Eccentric rods I busted the small box wrench that I was using. I was trying to clean up the thread on a bold that was a hair to tight. I busted the spare as well so gave up that job realizing I could make a new bolt faster. I went looking for a new wrench in town nobody had the small set only a cheap metric set. Lots on line But I wanted one for the evening.
I had some 1/8th drill rod and found a spare Allen key ground it round on the end cut it off and set it up to act as a punch. I bored a hole in the end of the drill rod. With the hex in the tail-stock close by, I heated up the drill rod to yellowish heat and plunged the Allen key hex into the hole.
After cleaning it up I still needed to harden and temper it which having been satisfactorily accomplished cleaned it up again and using loctite added a handle.
I then finished the large end of the eccentric rods. I had a few strips of cast brass that were used as a nosing on some fancy stair treats so after a bit of prep they will be used to the rods for the eccentrics.


Mike   
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Kim on November 25, 2019, 05:29:25 AM
That's an interesting method to make a little hex nut driver!  You'll have to let us know how it works for you.  Looks pretty good!
Kim
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on November 25, 2019, 12:04:40 PM
Good morning Kim, it works very well. :ThumbsUp:

Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on November 28, 2019, 05:57:13 AM
The arms of the eccentric rods are now roughed out and a test fitting made to ensure I am on the right track. I cut a small bit of white styrene as a test fit for the straight Allen link which will come after the arms have been finished being shaped and cleaned up.

Mike

Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Kim on November 28, 2019, 04:11:31 PM
Nice work on the eccentric rods, Mike.  And you get to do each four times!   ;)

Kim
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on December 02, 2019, 04:40:08 PM
Thanks Kim, this is beginning to feel more like jewelry, I think it would have so much easier in 3 1/2 inch gauge. I have completed the main work on the eccentric rods and am getting ready to begin the weight shaft and radius rods. the pins are just proxy keepers for the moment I need to make the proper ones with the taper pins to fix them, I am looking at #60 drill ish for the pins perhaps even smaller. :facepalm:
Mike
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Kim on December 05, 2019, 05:29:11 AM
Yes, its getting quite small.

I really like that picture!  Very impressive little assembly :)
Kim
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on December 07, 2019, 11:45:05 PM
the weight shaft brackets are now fitted ready for the lifting arms which will be pinned to the shaft.

Mike

Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: mike mott on December 12, 2019, 07:30:03 PM
After three tries at making the weight shaft bends on different pieces I finally managed to get one looking decent enough. The arms were machined from some blanks parted off some 1144 bar stock. Now i know what folk are talking about regarding the stress relieved steel. The arms were assembled using a little jig, they have been set to the correct positions with some AC glue and are ready to get the taper pins added for securing them.

Mike   
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: crueby on December 12, 2019, 08:31:15 PM
What is the purpose of the weight shaft?
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: Dan Rowe on December 12, 2019, 08:42:39 PM
Chris,
The weight shaft takes the motion of the Johnson bar or reverse lever and transmits it to the Allen links. The same shaft on a Shay runs parallel to the rail and is called the tumbling shaft.

Cheers Dan
Title: Re: gauge 1 Beyer Peacock 18 inch gauge shunting loco
Post by: crueby on December 12, 2019, 08:58:18 PM
Thanks Dan!
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