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Old 07-31-2016, 12:41 PM   #11
Blogwitch
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Cogsy,

Something like those little engines would be easy to design yourself, they all seem to work on a piston valve principle.

Maybe an easier way would be to obtain both of Tubal Cains (late Tom Walshaw) books and look to scale one of his little engines.
I took the basic plan of his tiny single cylinder off the side of the shown boiler in his book and mounted it up independently, it makes a lovely little engine and is one of the few I haven't given away because the kids love to see it run.


But you do need to be able to turn small items from the solid, and no, it wasn't turned up on a tiny lathe, but my 10f Atlas in a 6" four jaw.



As shown previously, the ones on here, although oscillators, scale up or down very nicely.

http://jpduval.free.fr/Plans_moteurs_vapeur_p1.htm

Just click on whatever one you want and you can download the plans for free.

John


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Last edited by Blogwitch; 07-31-2016 at 12:48 PM.
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Old 07-31-2016, 01:04 PM   #12
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This is a capture from the video of the single cylinder engine.

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Old 12-30-2016, 04:19 PM   #13
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Les will send you the plans for the little single cylinder engine if you ask.
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