Using a magazine and adapter from one of my Nerf guns I have made a bolt action magazine fed launcher, just needs painting and trigger guard making, 150psi gives over 300fps with half length darts.

another nice one... reminds me of Fallout

OSS Grease Gun ?

Moonbogg wrote: ↑

Sun Apr 03, 2022 7:39 pm

Lasagna cannon fired while in oven.

Hey, as long as it taste good and lands on my plate!

More important for me is the failure mode. PVC makes sharp shrapnel, most ABS yawns or makes squared off pieces.

This is a project called "Armadas 1500 II". It is a weapon that works with an integrated air pump, it is a single shot, hybrid that precompresses at 8X - 10X. The firing barrel is with 12 microgrooves, caliber .25 and fires common pellets. The inverted bolt is made of 1045 steel, the combustion cham...

As far as I'm concerned.... If you're using hair spray or any other "aerosol" that isn't intended for burning, you've failed to do any meaningful research on the topic of spud guns. DITCH THE DAMNED "AEROSOL PROPELLANTS"! Propane. In a pinch, butane. If you find yourself in a 3rd world country with ...

Not sure if there was air in the line behind the water, but an interesting result. Definitely, he was pressurising with gas. So there was all the stored pressure of the gas in the line to deal with. Best way to do it is with a grease gun, they go up to stupid pressures (I've done hydroforming with ...

Moonbogg wrote: ↑

Mon Jul 25, 2022 9:44 pm

I will either leave to my kids or force the kids to bury me with the cannons, not sure which yet.

The latter would be an interesting discovery for future archeologists in the former case they could be used to distribute your ashes

Adapting this weapon to shoot with rupture disk. It gave me more power and regularity in the shots. I love plain old bursting records... I am using aluminized paper. I'm using two layers, which work fine for 9X of precompression that the hybrid has. The face that is made of paper itself is faced and...

The "cartridges" that includes the rupture disk, seal o'ring and the pellet is as in the drawing. In case of planning a repeating or semi-automatic weapon, with an ammunition magazine, it is necessary to build many.

I'd buy a high-end PCP airgun and swap the barrel with a smooth one for BBs Honestly that sounds like a sensible solution, and it doesn't even need to be a high end gun. My understanding is that you need to fire a 0.177” steel BB into the gelatin at a velocity of 590 +/- 15 feet per second, I would...

I'm only going to be dealing with about 40psi max.. which puts me around 280lbs of pressure on this. At this point I'm still testing concept, and it could likely be made from aluminum if need be. With the piston itself being 3D printed, it has very low mass and hopefully will not create too much imp...

Some pretty impressive footage of what can be achieved with compressed gas when taken to extremes

Build Thread on the GTA forum

I contacted SMC about my project and they are donating a pair of their 1.5" Pulse valves and some solenoid activated pilot valves to activate them. Rep is bringing them by today. I'm hoping one of them will work. Guaranteed to work, basically overkill for a t-shirt launcher which is good because yo...