Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 45 users online :: 4 registered, 0 hidden and 41 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

paintball mini combustion

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
Sponsored 
  • Author
    Message

paintball mini combustion

Unread postAuthor: spudling » Mon Aug 13, 2007 8:53 pm

ok im going paintballing this saturday (13th) and i wan t make an under barrel launcher for my tipmann 98 so it needs to be small but powerfull so i need some ideas i was thinking of one of those pocket cannons
  • 0


spudling
Specialist
Specialist
 
Posts: 48
Joined: Fri Oct 27, 2006 10:17 pm
Reputation: 0

Unread postAuthor: homedepotpro » Mon Aug 13, 2007 9:20 pm

sounds good. isn't Saturday the 18th. have you every build a co2 regulated pneumatic gun before. im asking because you posted in the wrong section, which means you're new the the web site and probably spud gunning. this seem like quite an ambitious project to put off in a week
edit: my bad, i heard paintball and assumed pneumatic.
  • 0

Last edited by homedepotpro on Mon Aug 13, 2007 10:31 pm, edited 1 time in total.
Image
User avatar
homedepotpro
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 443
Joined: Sun Nov 26, 2006 1:00 am
Reputation: 0

Unread postAuthor: spudling » Mon Aug 13, 2007 10:03 pm

yes i only make pneumatic guns this will be my first combustion
  • 0


spudling
Specialist
Specialist
 
Posts: 48
Joined: Fri Oct 27, 2006 10:17 pm
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Mon Aug 13, 2007 10:07 pm

you'll need some sort of preloaded cartridge, I can't see you spraying deoderant into your chamber in the middle of a paintball game :?
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: homedepotpro » Mon Aug 13, 2007 10:35 pm

i don't think this will work in time. for what you describing, it sounds like you'll need to use meter propane or MAPP gas. the smaller you go the harder it is to get consistent shot because its harder to get the right fuel to air mix. the only thing i think that comes close would be this http://www.burntlatke.com/mini.html
  • 0

Image
User avatar
homedepotpro
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 443
Joined: Sun Nov 26, 2006 1:00 am
Reputation: 0

Unread postAuthor: thespeedycicada » Mon Aug 13, 2007 10:42 pm

for a single shot put some flour in the chamber shake it up and ignite!No need to spray in fuel.
  • 0

User avatar
thespeedycicada
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 429
Joined: Sun Aug 12, 2007 1:28 am
Reputation: 0

Unread postAuthor: Spudinator » Tue Aug 14, 2007 1:03 am

Dude, Flour? WTF?

Get a small propane torch, give the inside of the chamber a couple seconds from that and its all good. The torch pre-mixes the correct amount of fuel into the air (the holes at the base of the torch, thats the air intake). I made a pill-bottle (albeit a monster pill bottle lol) paintball combustion that could throw a paintball at 400 fps, though it was 3' long...

Perhaps coax would be your best bet for something like this, use 1.5" or 2" PVC with a 3/4" CPVC barrel (.69 ID :wink: ).
  • 0

"This is so fun it should be illegal... Oh wait..."
User avatar
Spudinator
Donating Member
Donating Member
 
Posts: 70
Joined: Sun Feb 13, 2005 4:50 pm
Location: WA
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: jackssmirkingrevenge » Tue Aug 14, 2007 1:24 am

What you want to be practical in a game of paintball is probably something like my combustion cartridge, a unit that will take simple pre-filled cylinders with gas and ammunition - incidentally, what are you planning for the latter? Presumably a whole bunch of paintballs, so at least 1" caliber...
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: spudling » Thu Aug 16, 2007 8:43 am

another thing is it needs to stay around 270 fps as a rule
  • 0


spudling
Specialist
Specialist
 
Posts: 48
Joined: Fri Oct 27, 2006 10:17 pm
Reputation: 0

Unread postAuthor: spud yeti » Thu Aug 16, 2007 10:46 am

With a combustion cannon its really hard to regulate speeds (unlike pneumatic) so perhaps sticking to pneumatics is more beneficial for this. If you build a pneumatic, it only needs about 50PSI to launch a paintball at 300fps. Therefore an onboard pump could work. I would make a piston valve too.
  • 0

really good quote/phrase here
User avatar
spud yeti
Brigadier General
Brigadier General
 
Posts: 1030
Joined: Tue May 08, 2007 1:41 pm
Location: Cape town south africa
Reputation: 0

Unread postAuthor: spudling » Thu Aug 16, 2007 11:44 am

i can do that but it needs to be small max 5" long
  • 0

Last edited by spudling on Thu Aug 16, 2007 12:13 pm, edited 1 time in total.

spudling
Specialist
Specialist
 
Posts: 48
Joined: Fri Oct 27, 2006 10:17 pm
Reputation: 0

Unread postAuthor: spud yeti » Thu Aug 16, 2007 12:08 pm

Go for a coaxial. 3" chamber and 3/4" barrel. That would be your best, compact choice.
  • 0

really good quote/phrase here
User avatar
spud yeti
Brigadier General
Brigadier General
 
Posts: 1030
Joined: Tue May 08, 2007 1:41 pm
Location: Cape town south africa
Reputation: 0

Unread postAuthor: frankrede » Thu Aug 16, 2007 12:14 pm

A coaxial would work perfect then.
  • 0

Current project: Afghanistan deployment
User avatar
frankrede
Lieutenant General
Lieutenant General
 
Posts: 3220
Joined: Thu Jul 20, 2006 9:47 pm
Reputation: 0

Return to Combustion Cannon Discussion

Who is online

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Yahoo [Bot]

cron
Reputation System ©'