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by farcticox1
Sat Aug 01, 2020 7:14 pm
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Project something

Got the semi auto together enough to test fire, it seems to work, no magazine tube yet. The chamber and 1/2" valve are from my old 10mm ball bearing launcher so the air supply is probably over kill. The piston is from an old pneumatic cylinder that is cut down. The red block is aluminium. The princi...
by GalFisk
Tue Aug 04, 2020 4:52 pm
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Arduino automated spudgun fuel injector

Hi all, I've been away from the forum since forever, but I'm still firing my old cannons now and then. They all reside at the airfield where I skydive, since it's there I have the most space and the best audience. My carrot combustion cannon (showcased here ) has been my go-to since it's not tied to...
by mrfoo
Sat Aug 08, 2020 1:07 am
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Re: Cooking up a little something...

Wow, missed that update, came back here from the link you posted elsewhere. 100% success indeed. 1067fps for a golf ball means you're basically being maxed out by the shock wave, i.e you're hitting the sound barrier. This makes me wonder what could be done with a streamlined projectile of the same c...
by farcticox1
Sat Aug 15, 2020 10:39 am
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Full auto airsoft pistol

I sort of made a full auto pistol from pieces I screwed together, the chamber is the only piece fabricated. Holds 130 bbs, rate of fire is insane, can get 4 bursts if I'm quick on the trigger. Compressor connects to the small fitting on the chamber at 150psi. The valve is a 5/2 1/8"' port pilot oper...
by hectmarr
Sat Aug 22, 2020 12:12 pm
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Autonomous pistol .22

My new self-made short gun. It is a hybrid pistol, with a built-in air pump, that operates with 8x and five strokes only. It shoots common pellets, .22, and the firing barrel is 12 micro-ridged, 200mm long. My friend's chrono gave about 650 fps on 4.5 ml of butane. It weighs about 900 grams, and ret...
by mrfoo
Mon Sep 07, 2020 1:44 am
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Re: Let's talk nerf blasters

I could always make my own, but it would be too powerful and might kill someone, so that idea is out.
I thought that was the idea?

Seriously, though, 150 bucks for a (high performance, admittedly) plastic toy gun? Tha fukk? I'd be far more inclined to try the nexus pro.
by markdem
Fri Oct 16, 2020 3:34 pm
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stonebow

Otherwise known as a pellet/bullet shooting crossbow. I built this thing to see: A) how accurate are they? B) how fast do they shoot? What I've learnt is that these things are super finnicky! I've shot paintballs with insane ball-on-ball accuracy at 25 yards, then tweaked the string/pouch and had pa...