I'm planning on making a PVC nerf rifle/cannon to use with

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Here's a shitty example of the design I'm leaning toward right now. Pump on the bottom to pressurize the larger tank up top, with a valve just past the tank to release the air. It obviously needs reinforced and made in a way that's comfortable to hold, but that's the basic functional plan I have in mind. Anything majorly wrong with it, or any better way to do it?

Get a Schrader valve stem from napa. Use a bike bump with a cam-locking hose so you can either leave the pump attached or drop it when you have an air compressor handy

Don't forget to use primer with your cement. Also google around for the magic PVC gun ratio so you know exactly how long to make your barrel in relation to your tank, and the correct diameter for the tank and valve. A stubby barrel will result in the payload leaving before the majority of the air has time to do work on it

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here

the fewest parts possible to get you launching shit

Im starting up a new yt channel, just uploaded a spud gun vid as it happens. Cost about 12 euro. https://youtu.be/a2Cc02rKvio

>>1011404
I've done pretty much this with good results. just limit your pressures to <60 psi, PVC is no pressure rated for a reason. Also use PVC cement and glue, else it won't work.

>>1011467
basically this

>>1011759
I meant primer and cement

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>>1011401
http://nerfhaven.com/forums/topic/8813-dchap-1/

>>1011759
I dont know what kind nigger PVC you buy but around here all PVC is pressure rated ~350 psi.

>>1011401
I have built your exact design on a much larger scale, for the proposes of launching potatos.


The ignitor will go into the end cap. Drill it out.

Also, use hair spray, aquas net 5

>>1011759
Schedule 40 is rated at ~150PSI

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Back when I was spud-gunnen we used hose clamps to reinforce the combustion chamber (boom room)

Not sure if it helped but we never had a failure

>>1013617
Back when I built spud guns we just used science instead of bullshit, but whatever works for you.

>jubilee clamps to reinforce the combustion chamber
>when you could have just moved up to pressure rated Sch40 or Sch80
>when the pressure spike of pray and pray tops out around 75PSI and ~90 for metered propane
Pneumatics are where its at anyway, at least until you build steel hybrid pressurized fuel-air guns.

Y'all smalltime as fuck.

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>>1011401
I made something like that years ago for airsoft. It has a CO2 canister adapter, galvanized pipe, a sprinkler system electric valve, and PVC.