Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
Wow! Those look amazing, I don’t think I could build anything that good. I might attempt something similar to what I’ve already made just with a smaller ball valve and adapters.
The world is the problem, the atomic bomb is the answer!