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

I had that Bohm marble machine saved in eBay watchlist for years it seemed like but none ever showed up… I hate to admit what I paid for a new one, but after seeing how many people sat and watched it, it was worth it in the end!

https://www.boehm-stirling.com/en/roll1-steampunk-kugelbahn.html

If you really have deep pockets, check out the fancy model   

https://www.boehm-stirling.com/en/roll2-high-class-kugelbahn-tower.html

https://youtu.be/MuIbzJ0aiLo?si=8mi8zpaP2TiHRLhP