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Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Ultra7 wrote ...
Pretty cool, Mathew. Gives me some ideas for projects to do with the kids while they are on summer break.
Haha, yeah actually my dad is the one that suggested to make one together. I went ahead and made a little one by myself. I just shot it today while my dad was watching and i think i scared him a little bit.
Registered Member #180
Joined: Thu Feb 16 2006, 02:12AM
Location: Ontario, Canada
Posts: 187
I made this one last year, I never got around to finishing it but hopefully I will get around to it this summer... It works like a champ and is loud as hell. I had all the volumes calculated and stuff but I lost that piece of paper, either way the combustion chamber is big enough, and the gun is powerful enough for some kick back, and exploding potatoes into a mist. Lots of fun haha! The ignitor is made from like 20 disposable cameras (just a guess), I have to put it all in a box that can easily mount to the body of the pipe, it is a pain in the ass on the end cap, and sometimes you end up shocking yourself pretty good... Actually now that I'm typing this I think that I'll get some parts tomorrow when I'm at work and finish it up!
Registered Member #1451
Joined: Wed Apr 23 2008, 03:48AM
Location: Boulder, Co
Posts: 661
I made an air cannon for my class's homecomming float this year... I don't have any pictures but it had a 2 inch barrel that was about 6 feet long. It had an unused propane tank as a resevoir and a ball valve to trigger. At only 50 psi we were shooting 3 foot long boards 50 yards anyway it was made to shoot confeti and candy and worked great.
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Well i couldn't take a video of the new one because it was to freaking loud. It is powerful enough to blow a hole in a cans back side. I shot a capacitor that fit in the barrel perfectly. I also shot water balloons without blowing them up by using less propellant. They went quite high. Sometimes it will blow the balloon up and spray water everywhere. Hopefully tomorrow i can shoot it again.
Registered Member #902
Joined: Sun Jul 15 2007, 08:17PM
Location: Pacific Northwest USA
Posts: 1042
I use acetylene from a built-into-cannon acetylene producer (fueled by calcium carbide)... I shoot those mini-potatoes that are like perfect spheres (I have no idea what to call them)
Registered Member #1878
Joined: Mon Dec 22 2008, 03:43AM
Location:
Posts: 2
um... im new and im making a spud gun but u seem like experts on ignitors so wat would be the best sparker for a spud gun. and would u be able to put a battery wired to a BBQ lighter would that help the spark
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Homemade spud gun.
Actually now that I'm typing this I think that I'll get some parts tomorrow when I'm at work and finish it up!
anyway it was made to shoot confeti and candy and worked great.
i shot one with my big spudgun and it put a massive 2" dent and just about blew the back of a steel chair from 15ft away.
