- Joined
- Jul 7, 2020
- Messages
- 71
They are being run on compressed air, but steam would work as well. On average about 20-30 pounds. We test them at the end of the semester and it's always fun to see whose will run on the least amount of air. I had a technology education major a few years ago that did an exceptionally nice job on her engine. We got it to keep running down at only three pounds of air. She had never used a machine tool of any kind before taking the class and produced not only the best functioning engine, but also the best finished.