I am a novice machinist and would very much like to build my first Stuart model Steam engine, but what engine would you suggest i start with? Have built two wobbler steam engines form scratch material, one is a simple single acting engine , and one is a double acting. Another question, because I am from South Africa I do not have ready access to BA taps and dies and imperial drills and reamers. Can I convert some of the holes etc to metric or would i over complicate the work?
I saw a photo of a green twin oscillating steam engine on the Preston Services website a few years ago, and a Canadian buddy of mine challenged me to make one. Long story short, I built a foundry, used a 3D modeling program to model the engine using 3 photos, made the patterns, and cast the parts for a 60% scale engine. I recently got the engine running, and it can be viewed here: https://www.youtube.com/watch?v=UxIZ4iuhLyM The plan at this point is to finish the painting work on the engine, and publish it in Live Steam and Outdoor Railroading magazine. It was a long journey to learn the foundry work, but I was able to cast some of the parts in gray iron, with the remainder being cast in 356 aluminum.