Large steam engine model.

[Jasonb]

There does not look to be a lot of distance between the crank centre line and the end of the trunk guide. Have you checked there is enough clearance for the conrod without it hitting the trunk guide?

[Michael S.]

I have to admit that I only checked it roughly. I made a rough sketch, and I think it should work.

[Jasonb]

It should be fairly easy to check as you can measure distance X and decide on the mid stroke position of the crosshead pin. Pin position can be adjusted a bit if needed as can adding a chamfer to the open end of the trunk guide.

High point is not actually at the mid point but close enough.

[Michael S.]

Hi Jason, thanks a lot for your thoughts on the crankshaft spacing. Unfortunately, I can't check that right now; I'm at the model-making exhibition in Leipzig.

[crueby]

Looks like another fun show!