I have wanted to build a steam engine from scratch for a while. Today I started the "Jingle Bell" engine from http://npmccabe.tripod.com/jinglebellmotor.htm. I like the look of this engine and have almost enough material on hand to finish it.
I drew up the plans in cad, used Sheetcam, and cut the fly wheel today my HF CNCed mill. I will cut the frame next.