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Hello from Couty Durham

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GeoffT26/09/2021 13:47:02
30 forum posts
11 photos

Hello all

After retiring a couple of years ago I bought a Sieg SC3 lathe and a Sieg SX2P mill from Arc Euro, and am happy with both. My interest is in model stationary engines.

The current project is the single cylinder balance beam engine designed by Gerry Dykstra, progress so far shown in photo (sorry I don't know how to rotate it). I am now making the crankshaft but can't find the distance for the throw. Scaling off the drawing (which as a former mechanical engineer I know you should never do!) comes out at 13mm centre to centre. Can anybody confirm this?

Thanks

GeoffT

 

20210924_153516.jpg

Edited By JasonB on 26/09/2021 14:52:01

Brian H26/09/2021 14:44:39
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2312 forum posts
112 photos

Hello Geoff and welcome.

Brian

JasonB26/09/2021 14:51:49
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25215 forum posts
3105 photos
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The metric drawings I have show it as 12.5mm and I assume the original imperial was 1/2"

gerrys crank.jpg

 

Edited By JasonB on 26/09/2021 14:53:52

Howard Lewis26/09/2021 15:18:37
7227 forum posts
21 photos

Welcome aboard!

Hope that you get things sorted out

Howard

GeoffT26/09/2021 15:27:23
30 forum posts
11 photos

JasonB

Thanks for that.

Brian & Howard, thanks for the welcome messages

GeoffT

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