Thanks for the link. Seems I didn't look deeeeep enough in John-Toms site. Have duly downloaded the plans, now to find where on the list of do-ems it will fit. Gotta attempt our club challenge of a Jan Ridders Coffee Cup Stirling first I guess.

No not that kind. There is a mid November dead line for the Coffee Cup and I still have my attempt at his Bobber that would not work for me last year and I'm determined to make it go round even if it no longer looks like it was intended. It actually tried to run today and now I am thinking my flywheel may be on the light side being made from Aluminium with lead inserts around the rim.

John B