Goldstirling

The Horizontal Stirling Engine was the first of the Goldstirling series of engines. I am sure it went though close to hundred revisions so that it can be made on the most basic lathe and mill, while at the same time not compromising its mechanical functionality. 

The mostly full size plans for this engine are $30. When ordered with another set the price is only $50. This offer includes the quad-rocker engine too.    

This model is shown with some CNC parts. but like all the Goldstirling plans, most of the parts can be made rectangular or sculptured. The important dimensions are between hole centers not the edges.