Making Simple Model Steam Engines

[gerald townerParticipant @geraldtowner12084]

Errors in drawings

[Geoff YarhamParticipant @geoffyarham31662]

A little late but if any one is still on this thread, a shot of my paddle engine. I have it working on comprest air now for the boiler!  see also my album.  geoff yarham.

 

[hammerParticipant @hammer]

no one

[Bob Abell 2Participant @bobabell2]

Hello Geoff

How does one find your album?………………I`ve had no luck at all……….there seems to be no search facility!

 

Bob

[David MeierParticipant @davidmeier28154]

Hi Bob. It is in the second lot of albums about half way down, called “my models”

David.

[Bob Abell 2Participant @bobabell2]

Thanks for that, David……………………Found it!

 

Bob

[hammerParticipant @hammer]

David, I am pleased some one has looked at my Models. Iwill post a photo of my twin occilator when I have time.  Geoff

[keith reesParticipant @keithrees30068]

Hi Everyone,

Just joined the forum. I too bought the Stan Bray book 'Making simple steam engines'. My first attempt was to be 'Simple Sam' and I was really pleased that it worked first time with very little input from a lathe. Built mostly from tubing, flat and round bar, and using a small pillar drill, files and fixed together with superglue and epoxy resin. It was my intention from the outset to run these models on compressed air. My next attempt would be the 'Clapper' engine because it was a fixed cylinder version and a more complicated valve arrangement. After I started the project I suddenly realised that certain dimentions were either missing or left to the builders discretion. Then I also realised that the piston extension pin of 1.5mm diameter was going into a 1.5mm hole in the cylinder head. This pin pushes and opens the ball bearing 'inlet valve' by no more than 1mm but because the pin is still in the hole, I cannot see how pressure can get into the cylinder to activate the piston. I really cannot see how this engine can work at all. I've tried all pressures from10 to 50 psi but to no avail. I've even tried opening the inlet hole to 2.5mm diameter. I'm using a 3mm ball bearing for the valve. This dimention is missing too.

Keith Rees.

[Author]

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