Search found 320 matches
- Mon Jun 01, 2009 5:54 pm
- Forum: Combustion Cannons
- Topic: Solid fuel revisit
- Replies: 17
- Views: 4266
I started a thread on solid fuels over at APC a while ago with the intent on making a charcoal powder fueled cannon from steel tube. The exact design I was going to use is a little beyond what forum rules permits, but it involved igniting the charcoal in the same step as dispersing it. Aluminum woul...
- Wed Nov 26, 2008 4:36 pm
- Forum: Ammo & Parts
- Topic: How Fast Does A Grape Have To Travel...
- Replies: 12
- Views: 3302
- Wed Nov 26, 2008 4:28 pm
- Forum: Ammo & Parts
- Topic: How Fast Does A Grape Have To Travel...
- Replies: 12
- Views: 3302
- Sat Jun 21, 2008 9:20 pm
- Forum: Combustion Cannons
- Topic: I just made my spud gun but i can't get it to fire
- Replies: 12
- Views: 4138
- Thu Jun 19, 2008 9:53 am
- Forum: Ammo & Parts
- Topic: Casting PVC
- Replies: 21
- Views: 9265
PVC pipe isn't very pure PVC. Someone on APC tried to use PVC pipe in place of pure PVC as a chlorine donor in a star composition, but it didn't work. Casting it might be difficult if there are different materials that may change the properties of the pipe once it is in it's shape. If you want to or...
- Wed Jun 18, 2008 3:03 pm
- Forum: Ammo & Parts
- Topic: Casting PVC
- Replies: 21
- Views: 9265
- Wed Jun 18, 2008 2:57 pm
- Forum: Combustion Cannons
- Topic: Flour Cannons
- Replies: 37
- Views: 11072
I started a thread over on APC a while ago when I was going to make a charcoal powered cannon, and now that I have summer off I might finish it. These are quite viable fuels if you can ignite them and spread them effectively. We are supposed to stay out of pyro-related things on this forum, but I'll...
- Wed Jun 18, 2008 2:29 pm
- Forum: General How-To & Discussion
- Topic: 300 yards?
- Replies: 35
- Views: 8340
Well, you could freeze the potato to harden it and then turn it on a lathe to 1.5", then you get some oxygen… If you put a piston valve on a pneumatic of those dimensions you should be throwing stuff pretty far out there. Spray your projectile with glow in the dark paint and fire a little after suns...
- Sat Jan 26, 2008 7:40 pm
- Forum: General How-To & Discussion
- Topic: Spud Gun Myth for Mythbusters?
- Replies: 62
- Views: 15818
- Sat Jan 26, 2008 5:05 pm
- Forum: Pneumatic Cannons
- Topic: 10" by 5' steel pipe.... What to do, what to do
- Replies: 29
- Views: 5973
- Sat Oct 06, 2007 8:17 am
- Forum: General How-To & Discussion
- Topic: share your cannon accidents!
- Replies: 328
- Views: 86936
Heh, the funniest accident I have seen happened to my friend when he was shooting my combustion. He had the back propped kind of high on his shoulder and started pushing the igniter, but nothing happened. He turned his head to look at me and started saying that it wasn't working when the back lifted...
- Sat Jul 28, 2007 1:41 pm
- Forum: Pneumatic Cannons
- Topic: galvinized steel
- Replies: 9
- Views: 3336
- Sun Jun 24, 2007 9:27 pm
- Forum: Combustion Cannons
- Topic: Idea for 9V Battery Ignition System
- Replies: 26
- Views: 9877
- Sun Jun 24, 2007 9:10 pm
- Forum: General How-To & Discussion
- Topic: How did you all get into Spudding?
- Replies: 58
- Views: 11438
- Sun Jun 24, 2007 9:07 pm
- Forum: Combustion Cannons
- Topic: Idea for 9V Battery Ignition System
- Replies: 26
- Views: 9877
If you're after more guranteed ignition than a BBQ igniter, stop messing around with the plain steel wool. I have held an unlit running torch against a wad of burning steel wool and it didn't ignite. It is, however, capable of lighting something like gunpowder mixed with a binder or KNO3 and sugar. ...