Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Daniel i think you have hit the nail on the head a flywheel with pins seems to ring a bell at that time there was no photo of the set up and maybe i was the only one that thought the piston stopped at the same place every time but your explaination using servos makes sense would like to see a photo from anyone if possible i think it would make a good winter project maybe flywheels with different weights would stop the piston at a different place. Many thanks for that input.
CBWho  i`m afraid your knowledge of steam far outstrips mine and i don`t know how i could reply again many thanks for your input