I said I was going to do it and here it is. After some hours tinkering in the workshop with my son, this is what I ended up with. I decided to use a firecracker instead of powder and BB's for projectiles because that's what I had readily available. Didn't spend anything but time.
Here's the solid steel roller I started with. It's a roller from an old copier.
A couple pics of drilling and shaping the barrel.
And here's a video of the little thing in action.
boom stuff :: DSCN0467.flv video by Suprtek - Photobucket
Anyone with a few basic tools can make one of these and they are a blast to play with. (pun intended)
Here's the solid steel roller I started with. It's a roller from an old copier.
A couple pics of drilling and shaping the barrel.
And here's a video of the little thing in action.
boom stuff :: DSCN0467.flv video by Suprtek - Photobucket
Anyone with a few basic tools can make one of these and they are a blast to play with. (pun intended)
By the way, sorry for the background noise in the video. My shop AC unit is kinda loud. The tape on the target is covering our first shot. We were trying to see how consistent it would be.
