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

I just finished building the Stuart "Progress" oscillating cylinder steam engine that was pictured in this thread. I sent to Stuart for the casting kit. Very easy to build and a great runner. The cast iron frame did have some hard spots, so used my solid carbide mills here. I am just about finished with the PM Research #3 engine, also. both will be run off my PM Research vertical boiler, when I get it finished. These are great COVID projects.  Brad