Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
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Zorlord
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- Joined: Sat Jul 21, 2012 10:55 pm
Fri Aug 17, 2012 5:40 pm
Dubbed the "LAWL"
Shoots nerf rockets using the PVC "cartridge" method, with a length of pvc capped with tape with a coupler over it. Powered by a co2 bike tire filler. shoots a nerf about 100 feet or so, which is fine for the purpose im using it for. paint job was rushed, and paracord will eventually be re-wrapped. This was a rush build, so it looks like shit, but it works and im happy with it.
any questions feel free to ask.
Last edited by
Zorlord on Wed Aug 22, 2012 1:40 pm, edited 1 time in total.
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Zorlord
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Fri Aug 17, 2012 5:59 pm
im using it for bunker-busting for airsoft. One co2 lasts about 4-6 shots, depending on the size of the cartridge i use.
essentially the cartridge is a 1/4 quick release coupled to a 6 inch section of 1 inch pipe. The end of the pipe is covered with 2 layers of shipping tape, then a coupler is forced ontop of the tape, securing it. pull the trigger, cartridge fills, tape bursts, and all the co2 shoots out, propelling the rocket. To reload, the barrel is removed at the coupler, cartridge is replaced, then barrel is slid back on.. I want to eventually make it breakbarrel/ sliding, but for now it will do.
EDIT: Ill take more pictures later.. Been working on this all day and im tired..
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lndncr2
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Sun Aug 26, 2012 5:36 pm
100 feet range is perfect for airsoft. Would like to see more detail on valve.
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Live1nce
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Mon Aug 27, 2012 12:10 am
lndncr2 wrote:Would like to see more detail on valve.
I agree, from your explanation, it doesn't seem to hard to build
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Live1nce
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iknowmy3tables
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Thu Sep 06, 2012 4:13 pm
I'm looking into making a bust disk cartridge gun, could you give me some guesstimated figures on number of shots, bursting pressure, and chamber volume?
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Zorlord
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Sun Sep 16, 2012 9:52 pm
Number of shots off of one cartridge ranges from 3-6. Bursting pressure is probably between 40-80 psi? I don't have any way to measure it, so this is just based off of the sources i used when making this cannon. Also, i've found that the most optimal cartridge length using 1 inch pipe is around 4 inches. I made 6 inch and 8 inch ones, and seeing minimal range increase from the 8 inch, i cut it in half. I used the 4 inch cartridge, and the range is essentially the same as the 6 inch one. Chamber volume is the volume of 4 inches of pvc plus maybe 4 or 5 inches of 1/4 inch brass pipe fittings. Also, the amount of barrel that the rocket actually travels down is maybe 4 inches or so.
