Adam & Michelle's homepage
Cannon Project (28 images)
Here it is. I found online directions to build this behemoth! For about $100 it makes a huge BOOM, and is completely legal too! It uses Calcium Carbide, which when mixed with water makes Acetylene. Acetylene is typically used for welding, but in this cannon it is purely a noisemaker. The cannon was fashioned out of Schedule 40 PVC and 1/2" Shelving plywood. The pictures show the process, and the videos show 2 of the first test firings! I was excited to be working with plumbing equipment again (from the old days in Phoenix), so I finished it in 2 days! Nothing like being an overachiever!
Here is the link to the directions for the cannon I made
Here is a link to another cannon built from these directions
Click a picture to see a larger view.