Phil1965

Thankyou Jason. Short and simple solution 😀

Hi I am using o rings for the first time as a piston ring on a steam engine. The cylinders and piston are in gunmetal  with a 1” bore. The drawing suggests a 1”old x1/8 profile. Any guidance what the ideal groove width and diameter would be gratefully appreciated
Thank you in advance

I having nothing to exhibit but looking forward to putting a face to some of the people off this forum.

Hi Jason
Thank you for the images that makes that process much clearer.

Hi I am after some advice on the camshaft for the hoglet. I am a bit unsure on following the method published by running a boring head in reverse as my boring head has threaded shank and don’t trust. I have just made a set of cams for my current project a Wyvern using a set of camcalc offsets using a dividing head. The problem I have is when I input the data into camcalc they don’t look correct.
Has anybody used the camcalc for the hoglet. If so could I trouble you for a copy please 🙏