Search found 62 matches

by acs2997
Fri Feb 22, 2013 7:15 pm
Forum: Pneumatic Cannons
Topic: Handheld Bottle Rocket Launcher
Replies: 11
Views: 2192

I was actually just drawing out a way to make it a hybrid :D I was thinking I could add propane, pressurize it, then have an electric connection that set off a stun gun with wires going inside the barrel and out towards the muzzle at the same time I pulled back the release. Maybe a little risky, but...
by acs2997
Fri Feb 22, 2013 3:21 pm
Forum: Pneumatic Cannons
Topic: Handheld Bottle Rocket Launcher
Replies: 11
Views: 2192

You can't use a bottle cap with this design because then you couldnt put it onto the PVC. And the 1/2" sch. 40 is probably the closest there is. If you put some soap, or even sunblock on it, there's practically no friction while shooting. And the barrel should be longer. This gun was designed for sm...
by acs2997
Thu Feb 21, 2013 11:03 am
Forum: Pneumatic Cannons
Topic: Handheld Bottle Rocket Launcher
Replies: 11
Views: 2192

I've pressurized it up to 150 psi and the only trouble I've ever had was that I needed another hose lamp because one wasn't enough. There's really too many zip ties for anything to go wrong.
by acs2997
Wed Feb 20, 2013 9:21 pm
Forum: Pneumatic Cannons
Topic: Handheld Bottle Rocket Launcher
Replies: 11
Views: 2192

Handheld Bottle Rocket Launcher

I don't know if this counts as a "pneumatic cannon" but it's pretty darn close. I haven't seen any other bottle rocket launchers on spudfiles (although maybe there are some), so I figured I should post it. I got the idea from http://www.sciencetoymaker.org. In fact its nearly an exact copy minus the...
by acs2997
Sat Jan 12, 2013 7:17 pm
Forum: Pneumatic Cannons
Topic: Where to find check valves?
Replies: 13
Views: 1401

Alright. I'll play around with it a little bit, I'll see what works and what doesn't. Thanks for the input, I've had an experience with accidental firings, not exactly the best day in my life
by acs2997
Sat Jan 12, 2013 6:57 pm
Forum: Pneumatic Cannons
Topic: Where to find check valves?
Replies: 13
Views: 1401

Is that in his slider?
by acs2997
Sat Jan 12, 2013 12:59 pm
Forum: Pneumatic Cannons
Topic: Where to find check valves?
Replies: 13
Views: 1401

I'm only shhooting paintballs, I'm not Punkin Chuckin here. The air chamber is about a foot and a half of 2" pvc. Thnk thats a god size?

Btw, I love the video :wink:
by acs2997
Sat Jan 12, 2013 10:54 am
Forum: Pneumatic Cannons
Topic: Where to find check valves?
Replies: 13
Views: 1401

Yeah, I'll probably go with the presta. How fast will it beagle to fill up e air chamber? Will it significantly restrict how fast it fills? I'm trying to make a semiauto gun, and I want the rate of fire as high as possible
by acs2997
Sat Jan 12, 2013 10:20 am
Forum: Pneumatic Cannons
Topic: Where to find check valves?
Replies: 13
Views: 1401

Thanks! Yeah, my friends dad does a lot of cycling, I'm sure I can get one from him. Thanks, I never would've thought to use one of those.
by acs2997
Sat Jan 12, 2013 10:11 am
Forum: Pneumatic Cannons
Topic: Where to find check valves?
Replies: 13
Views: 1401

Where would I find something like that? That's pretty much exactly what I need. Wait, isn't that the valve used on bikes? Maybe I'm wrong but that's what's used on racing bikes
by acs2997
Sat Jan 12, 2013 10:00 am
Forum: Pneumatic Cannons
Topic: Where to find check valves?
Replies: 13
Views: 1401

Where to find check valves?

Hello all,
I'm trying to find small check valves that I can put into a 2" piston, but everywhereive gone, the check valves are larger than my actual piston.

Does anyone know where I can find small check valves?
by acs2997
Fri Jan 11, 2013 10:30 pm
Forum: Hybrid Cannons
Topic: VERA: My very favorite gun
Replies: 146
Views: 30466

It looks like your end caps are DWV, you better rebuild it :wink:
Amazing war machine you have there. completely speechless
by acs2997
Thu Jan 03, 2013 10:28 pm
Forum: Pneumatic Cannons
Topic: Pneumatic piston?
Replies: 8
Views: 604

Thank you so much! these websites are perfect! To be honest, I hate eBay. I've never had a good experience with them. This seems perfect. I'm sure I can find one to use.
by acs2997
Thu Jan 03, 2013 8:21 pm
Forum: Pneumatic Cannons
Topic: Pneumatic piston?
Replies: 8
Views: 604

thanks! that saves me the stuggle of making my own!
by acs2997
Thu Jan 03, 2013 8:13 pm
Forum: Pneumatic Cannons
Topic: Pneumatic piston?
Replies: 8
Views: 604

how much do they sell for?