Single cylinder steam engine

This is a vertical single cylinder model steam engine translated from the plans posted at http://www.john-tom.com/MyPlans/SteamPlans3/GermanSingleVertical/BP-Dampf.pdf. Aside from an assortment of M3 bolts you'll want some basic machine tools to make this run. The piston rod, crank shaft, crank pin, and valve rod are included here for completeness but I'd really recommend cutting these from brass rod unless you have a mini-lathe to turn them accurately. Brass rod can be cut quite easily with the same sort of cutter that plumbers use to cut copper pipe. The parts here are all transcribed exactly from the plans with no tolerances added for printing.

Cutting gaskets for the steam chest and cylinder heads is recommended. I don't know yet if piston rings or o-rings are a good idea. Mine is leaking past the piston a good bit so rings will probably be required.

I've printed mine in pla with default .2mm settings for slic3r with the exception of bumping perimeters to 6 and setting