Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Congratulations, Arnold, that is a very unusual and wonderful engine.

It runs like a grandfather-clock in the first part of the video. Mechanically, a real piece of art.

To crack a nut it needs a material that is even harder than the nutshell, btw. So I guess you must be a really tough cookie, Arnold.
Nagelfluh???