Mr Darryl Boyd has written up plans on how to make your own Stirling hot air engine, and if you read the additional notes, you don’t even need to have a lathe to do it! Mr Boyd has posted the plans up for free on his website, in the interest of sharing information about the Stirling engine – which I think is very noble of him. If you scroll down on the front page, you’ll find the gallery of engines from some of the people who have made the engine (including the one by Mr Gordon Harris, who’s forgiveness I beg for posting his image above). If I can somehow get my nontechnical mind around those plans, I may have a go at making one myself – but of course, in a Steampunk style. If you do the same, let me know.