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

Sandy that`s a very kind offer but think that`s going to the opposite end i.e. to large. There is one in the vapeur  et model site under --other engines-- that is very similar to the ones you designed the bore is only 6mm and they claim it will pull 2kgs a double acting twin. the problem with the Stanley was you need a screw to adjust the pressure on the clock spring to keep the worm engaged other wise too much and the worm locks too little and the worm just spins (now fixed).  On the other hand it may just be worth making a car platform with all the trimmings steering and so on and when perfected make a body shell the 1907 Buick  very similar to the Stanley except for the bonnet so really need to think
Once again many thanks for your reply
ron