Author Topic: Chris' Build of a Lombard Hauler Engine  (Read 295577 times)

Offline 10KPete

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Re: Chris' Build of a Lombard Hauler Engine
« Reply #45 on: October 25, 2016, 04:21:45 AM »
This is a particularly nice whistle that should fit the Lombard.

http://www.nelsonslocomotive.com/Shay/MorePlumbing/PlumbingXWhistle/PlumbingX.htm

Pete
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Offline crueby

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Re: Chris' Build of a Lombard Hauler Engine
« Reply #46 on: October 25, 2016, 04:49:56 AM »
This is a particularly nice whistle that should fit the Lombard.

http://www.nelsonslocomotive.com/Shay/MorePlumbing/PlumbingXWhistle/PlumbingX.htm

Pete
It would be great to do a multi chime whistle like that one, the length is good, but I would have to make it a smaller diameter. The boiler is 3",  a 2" whistle would not fit because of all the drive gears and eccentric valve gear under the boiler. From the text, it sounds (pun!) Like a smaller diameter would make it less loud but same pitches, might be able to fit a 3/4" version, have to see what will fit. Smaller diameter would also need less steam to play, I would think.

Thanks for that link, it goes in the planning file!   :cheers:

Offline crueby

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Re: Chris' Build of a Lombard Hauler Engine
« Reply #47 on: October 27, 2016, 12:43:20 AM »
After a few hours (spread over a few days) of crank turning, all the track plate blanks have been trimmed to length and also had their sides rounded over with a corner-rounding end mill:

They did not take much time each, but with 64 of them in the pile (58 needed, half a dozen spares) it takes a little while to get through them. Now on to a more interesting step - milling in the 'fingers' that interlock each plate into the next one. I was thinking of doing one slot in all, moving the table, doing the next, and so on, but realized that with the even spacing they have, all I needed to do was to carefully align for the first slot, zero the handwheels, and I could do all the slots for one side of the plate in one go. So, here is the first one (well, the second, actually, the first one needed a slight tweak to the starting position) with the slots milled in one side.

As you can see, the center slot is deeper that the others - that will leave room for the tooth on the sprocket in the center of the track. Also, since I am milling these horizontally, the inner ends of the slots are round when they need to be square. That will be a second pass later, squaring up the slots with a verticall pass. I could have started with the vertical pass, but have learned from previous experience that doing deep passes like that with these small tip (1/8") end mills that they can flex and pull to the side, so I am doing this in two stages for a hopefully better result.
Before cutting the slots, I did go back and mill in a step in the end of the holding jig so that the end of the mill is not rubbing on the bottom on every part, can see that below the part in this photo (the step is full of chips at this point):

I have made up the first couple to test and measure, here is the first one

and the first pair test fit to each other

Once the slots are squared up, they will fit farther in, plus both of these parts had the same side milled. The second side, when done for real, will have the slots offset by one width, so that the edges of the tracks will line up with each other. As shown before, here is what the finished parts will look like:

So, first couple down, another 56 to go! Each one takes about 2 minutes to do, so I know what the next couple hours of shop time will be...
« Last Edit: May 31, 2018, 08:11:45 PM by crueby »

Offline Flyboy Jim

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Re: Chris' Build of a Lombard Hauler Engine
« Reply #48 on: October 27, 2016, 03:16:55 AM »
Sounds like a job for the "Shop Elves" Chris.  :naughty: At least it looks like you're in for some bad wx up there = more shop time!

I'm enjoying this build.

Jim

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Offline crueby

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Re: Chris' Build of a Lombard Hauler Engine
« Reply #49 on: October 27, 2016, 03:44:14 AM »
Sounds like a job for the "Shop Elves" Chris.  :naughty: At least it looks like you're in for some bad wx up there = more shop time!

I'm enjoying this build.

Jim

Yup, need to leave a plate of cookies next to the plans and see if they get the hint! So far so good on the tracks, the jig is working well. Ordered a couple spare 1/8" end mills, they are going to be getting a lot of work on this build, tons of little parts to shape.

Going to get a half inch of snow tonight, will all melt in the morning. It better, am taking the convertible in for a new top on Friday!

Offline SteamR

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Re: Chris' Build of a Lombard Hauler Engine
« Reply #50 on: October 27, 2016, 11:18:45 AM »
Hello Chris,
the Lombard Steam Hauler is an impressive project.
May be the following information can support you.
A model engineer of the Netherlands has posted a lombard project in gauge 1 size on this platform: http://forums.mylargescale.com/18-live-steam/41562-lomberd-steam-log-hauler.html.

He has his own web side with a lot of information of the original engine and a building log of his model here: http://www.depuffendeschoorsteen.com/lombard-steam-log-hauler-/.

Interesting is also this movie of a restored Lombard ride (w/ pressurized air only):
<a href="http://www.youtube.com/watch?v=633a6Bej5Ek" target="_blank">http://www.youtube.com/watch?v=633a6Bej5Ek</a>
Finaly here is a movie of his model:
<a href="http://www.youtube.com/watch?v=vLaf3Us6Dxw" target="_blank">http://www.youtube.com/watch?v=vLaf3Us6Dxw</a>

Hope you have fun with that information
Richard

Offline kvom

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Re: Chris' Build of a Lombard Hauler Engine
« Reply #51 on: October 27, 2016, 01:18:02 PM »
One thing I noticed on the model in the video is that the lever (johnson bar) is reversed from normal locomotive usage.  I.e., lever forward sets reverse.  I wonder if that is intentional, or he just reversed the valve timing by mistake.

Offline crueby

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Re: Chris' Build of a Lombard Hauler Engine
« Reply #52 on: October 27, 2016, 03:45:45 PM »
Hello Chris,
the Lombard Steam Hauler is an impressive project.
May be the following information can support you.
A model engineer of the Netherlands has posted a lombard project in gauge 1 size on this platform: http://forums.mylargescale.com/18-live-steam/41562-lomberd-steam-log-hauler.html.

He has his own web side with a lot of information of the original engine and a building log of his model here: http://www.depuffendeschoorsteen.com/lombard-steam-log-hauler-/.

Interesting is also this movie of a restored Lombard ride (w/ pressurized air only):
<a href="http://www.youtube.com/watch?v=633a6Bej5Ek" target="_blank">http://www.youtube.com/watch?v=633a6Bej5Ek</a>
Finaly here is a movie of his model:
<a href="http://www.youtube.com/watch?v=vLaf3Us6Dxw" target="_blank">http://www.youtube.com/watch?v=vLaf3Us6Dxw</a>

Hope you have fun with that information
Richard
Yes, I have seen his build, quite a nice job! The Maine museum included the link in one of their posts during the restoration. I've been in contact with the museum, they are running the engine for the last time this year on the 5th, but I cannot make it up there that weekend, definitely want to get there for one of the runs next year!

Offline crueby

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Re: Chris' Build of a Lombard Hauler Engine
« Reply #53 on: October 27, 2016, 09:38:15 PM »
Partway along the slots on the first sides of the track plates, 25 down about 35 to go...


These boring updates are where we need Zee back to chime in and liven things up! Best I can do is go get a couple of chocolate chip cookies to share with the shop elves in the meantime...   :DrinkPint:
« Last Edit: May 31, 2018, 08:12:22 PM by crueby »

Offline Flyboy Jim

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Re: Chris' Build of a Lombard Hauler Engine
« Reply #54 on: October 27, 2016, 10:15:49 PM »
I can see where it could get a little redundant when you need an "In Bin" and an "Out Bin" for your parts!  :lolb:

Jim
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Sherline 5400 Mill
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Offline crueby

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Re: Chris' Build of a Lombard Hauler Engine
« Reply #55 on: October 27, 2016, 10:43:17 PM »
I can see where it could get a little redundant when you need an "In Bin" and an "Out Bin" for your parts!  :lolb:

Jim
It would be worse for Jo, imagine building THREE of these!!   :Jester:

Offline wagnmkr

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Re: Chris' Build of a Lombard Hauler Engine
« Reply #56 on: October 27, 2016, 10:54:24 PM »
Hmmmm ... Your tracks are almost exactly the same size as the 64 pieces I have printed for a radio controlled excavator that must be nearly the same scale. I might have to "borrow" your drawings for the tracks as they are way more sturdy and realistic than the printed ones.

Tom
I was cut out to be rich ... but ... I was sown up all wrong!

Offline crueby

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Re: Chris' Build of a Lombard Hauler Engine
« Reply #57 on: October 27, 2016, 11:14:57 PM »
Hmmmm ... Your tracks are almost exactly the same size as the 64 pieces I have printed for a radio controlled excavator that must be nearly the same scale. I might have to "borrow" your drawings for the tracks as they are way more sturdy and realistic than the printed ones.

Tom

Did you make the rest of the excavator? I've thought about building one of those for a long time, but could not come up with a good way to control the arms/bucket without actual hydraulics.

Offline Jo

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Re: Chris' Build of a Lombard Hauler Engine
« Reply #58 on: October 28, 2016, 08:20:01 AM »
It would be worse for Jo, imagine building THREE of these!!   :Jester:

The next model I have three to do has a total of 12 cylinders :facepalm:

It will be one at a time for a while  ;)

Jo
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Offline wagnmkr

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Re: Chris' Build of a Lombard Hauler Engine
« Reply #59 on: October 28, 2016, 11:11:15 AM »
Hmmmm ... Your tracks are almost exactly the same size as the 64 pieces I have printed for a radio controlled excavator that must be nearly the same scale. I might have to "borrow" your drawings for the tracks as they are way more sturdy and realistic than the printed ones.

Tom

Did you make the rest of the excavator? I've thought about building one of those for a long time, but could not come up with a good way to control the arms/bucket without actual hydraulics.

This is the one I am doing.   http://www.thingiverse.com/thing:50110    It is all printed and I am in the process of making the fastenings and fitting everything together. The "real" R/C ones from Europe do have mini hydraulic systems in them and are all metal, so very heavy. The tracks on this one are very simplistic and since I am not so good with drawing programs, it would be easier for me to machine a set.

Tom
I was cut out to be rich ... but ... I was sown up all wrong!