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| brogdenlaxmiddie |
 Posted: 05/12/2008 19:47 PM Post subject: |
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Lieutenant Colonel
Joined: 22 Jul 2007
Posts: 452
614.89 Spud Bux
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| not really, you'd just need a lot of litheum grease and a lot of pressure holding the barrels and outlet together... I have thought of an idea to use but I'll draw it up later... |
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| SNDM |
| Posted: 05/13/2008 12:18 PM Post subject: |
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Sergeant
Joined: 26 Feb 2008
Posts: 83
43.94 Spud Bux
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| Maybe use blowback to gently push another paintball into a barrel not in use? |
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| judgment_arms |
| Posted: 05/13/2008 13:28 PM Post subject: |
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The Judge
Joined: 17 Oct 2006
Posts: 1216
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I’m guessing most of you don’t know exactly how Gatling type weapons work, do you?  |
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| socoj2 |
| Posted: 05/14/2008 16:31 PM Post subject: |
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Master Sergeant
Joined: 29 Jun 2007
Posts: 168
396.75 Spud Bux
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| judgment_arms wrote: | | I’m guessing most of you don’t know exactly how Gatling type weapons work, do you? |
I do which is specifically why you cant do it for paintball.
To the OP: The materials in mine are over $300. Thats for the bare metal, I had everything cut on a water Jet, bearings and tube.
The guy you linked to is using a set of $600 bearings from the look of his cannon. |
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| THUNDERLORD |
| Posted: 05/14/2008 17:52 PM Post subject: |
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Loose Cannon
Joined: 28 Mar 2008
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| judgment_arms wrote: | | I’m guessing most of you don’t know exactly how Gatling type weapons work, do you? |
EDIT: one way to have a lower rof is to have less barrels |
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| judgment_arms |
| Posted: 05/14/2008 20:45 PM Post subject: |
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The Judge
Joined: 17 Oct 2006
Posts: 1216
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| socoj2 wrote: | | judgment_arms wrote: | | I’m guessing most of you don’t know exactly how Gatling type weapons work, do you? |
I do which is specifically why you cant do it for paintball... |
How so? |
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| socoj2 |
| Posted: 05/16/2008 6:21 AM Post subject: |
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Master Sergeant
Joined: 29 Jun 2007
Posts: 168
396.75 Spud Bux
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| judgment_arms wrote: | | socoj2 wrote: | | judgment_arms wrote: | | I’m guessing most of you don’t know exactly how Gatling type weapons work, do you? |
I do which is specifically why you cant do it for paintball... |
How so? |
Because the firing mechanism rotates, while it works really good for firing bullets.
There is far to much wiring and pneumatic hose to run for 6 paintball guns. I could probably machine a rotating air supply, but engineering time and machine cost on that would be in the 10-20k range.
See this example... The rotation speed of the unit, will be far to high to do actuall paintballs and the shock of the thing will rip them to shreds.
http://science.howstuffworks.com/machine-gun4.htm |
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| socoj2 |
| Posted: 06/27/2008 16:37 PM Post subject: |
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Master Sergeant
Joined: 29 Jun 2007
Posts: 168
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Figured it was time for an update...
There was a little wobble in the barrels but not to bad. The board broke the morning of D-Day, It fired better when i used a GMRS radio and hit transmit then it did with the actual trigger.
I still need to find someone to make me some 45 degree right and left side feed necks for ions.
Over all it wasnt to bad for my 1st one. I learned some things, 1 being that i need to buy a tig Welder because people charge to much. 2. Order all my plates at the same damn time because its cheaper to get them cut like that. 3. 75 mm main shaft is WAY to big. I had to use a bicycle sprocket which wasnt ideal. |
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| SEAKING9006 |
| Posted: 06/27/2008 17:34 PM Post subject: |
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1st Lieutenant
Joined: 23 Jun 2008
Posts: 284
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| I have an idea. It would probably work best with 3 barrels to save weight. What you do, is you either build a blow-forward or blow-back piston mechanism, like in the GB-semi, or my design. Then, you add a revolver-type mechanism to spin the barrels like a plain old revolver. If you can get it to work at a high ROF, probably by using a case feed or belt feed system to reduce feed failures. The most problematic part would be reducing the weight of the barrels to allow for easier cycling. You'd probably want to build the piston out of copper so it could handle higher pressure and not shatter (as easily). |
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| microman171 |
| Posted: 06/29/2008 2:51 AM Post subject: |
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Sergeant
Joined: 30 Apr 2008
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| Sticky_Tape |
| Posted: 07/09/2008 5:50 AM Post subject: |
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Brigadier General
Joined: 31 Jan 2008
Posts: 809
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Why not just make a paintball gun with 4 long barrels for more accuracy not volocity in a square shape and make them fully automatic somehow.
blow-forward breeches with something to make pulses of air maybe 1 big air pulser like the one used in the gb-semi. pop four shots were fired short reload .5 seconds pop four more shots were fired. or maybe have four air pulsers and have the barrels fire one after the other pop pop pop pop pop pop pop pop. |
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| someguy411 |
| Posted: 07/10/2008 0:24 AM Post subject: |
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Private
Joined: 15 Jun 2008
Posts: 14
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| actually, if you youtube it futher, some college students at Virginia Tech did t for thier engineering final, so it has been done before by idiots |
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| SNDM |
| Posted: 07/10/2008 6:10 AM Post subject: |
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Sergeant
Joined: 26 Feb 2008
Posts: 83
43.94 Spud Bux
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What advantages would multiple barrel bring?
I cant imagine them getting hot. Maybe with CO2 it'll prevent cooling of the barrels.
Or is it just for the awesome factor? |
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| Sticky_Tape |
| Posted: 07/10/2008 9:26 AM Post subject: |
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Brigadier General
Joined: 31 Jan 2008
Posts: 809
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| probably I would just make a full auto turret or handheld. |
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| socoj2 |
| Posted: 07/18/2008 10:01 AM Post subject: |
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Master Sergeant
Joined: 29 Jun 2007
Posts: 168
396.75 Spud Bux
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Rotational issue with paintballs. I worked up some math this past month for shooting down the barrels of rotating tubes. ITs just not feasible. If you Are shooting down a 1.5" barrel so the ball doesnt clip the side and break. The fastest you can make it shoot is 20 balls per second. Granted this assumes barrles on a 2" diameter pattern and 1.5" in diameter.
| Quote: | | Or is it just for the awesome factor? |
This... |
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