Most of the danger will come from the construction of the Spud Gun, not the use, PVC being what it is, will be the main cause of failures, usually explosive. PVC is not air pressure rated.

Black Friday sales soon, got to be some deals on 3D printers. I got my Ender 3 1/2 price in a sale. Started with PLA, now printing stuff with PETG.

I remade it again into semi auto airsoft, no moving parts, it just blows the BBs up the ammo tube.

I wonder if the solenoid valve also needs pilot air to operate and as it starts to dump theres not enough pressure to open it. I have blocked and redrilled pilot ports before so the solenoid part always has full pressure. If the valve has a manual actuation button on it have you tried firing with th...

Some build pictures and parts. Trigger valve, 3/2, is threaded straight into chamber, 1" stainless steel Sch40 tube, and piped to air pilot valve. 20220429_065634.jpg Grip is made from old kitchen table top. Grip.jpg Trigger valve https://tecotechnology.com/products/tac-3-2-push-button-valve-10-32 3...

Watch this first

I stripped the rubber off and soldered to a NPT fitting, or you can buy them

There is a downloadable PDF for it

https://odysee.com/@INMC:d/proof:e9

I like both of them, I would like to see exactly how that airsoft works, 477 fps on the chrono seems ok to me for what is.
OK, so apparently it's a 0.25 steel BB gun.

Running at upto 600fps @150psi, stainless steel barrel and chamber, 1/2" pilot air valve triggered by miniature 3/2 button valve, all hand made except the scope, PVC pipe for muzzle break. 7 shot gravity fed magazine tube, single shot bolt action.

I like it, what's the magazine capacity ? That's why I made my vortex hold 2000 bb's

I use those little button valves for triggers as well to power air pilot valves.