Search found 1715 matches

by Moonbogg
Fri Sep 23, 2022 7:07 pm
Forum: Pneumatic Cannons
Topic: Vintage Eclipse Gen1 revolvers etc.
Replies: 4
Views: 130

Re: Vintage Eclipse Gen1 revolvers etc.

I should offer the police my hybrid design with 3 minute rate of fire between shots :lol:
by Moonbogg
Mon Sep 19, 2022 6:53 pm
Forum: Hybrid Cannons
Topic: Single-pump handgun
Replies: 7
Views: 213

Re: Single-pump handgun

That is impressive. So compact yet powerful. Very well done!
by Moonbogg
Thu Sep 08, 2022 12:42 am
Forum: Pneumatic Cannons
Topic: Valve selection
Replies: 10
Views: 331

Re: Valve selection

I'm pretty clueless about what you need. Maybe some more details about the cannon might help. There are some pneumatically minded guys around here who will likely chime in. The only thing I really know how to do is make a piston cannon. Sounds like you want to buy a valve, but I can't think of any p...
by Moonbogg
Sat Sep 03, 2022 6:29 pm
Forum: Pneumatic Cannons
Topic: 3D printed internal valve trial
Replies: 7
Views: 621

Re: 3D printed internal valve trial

A cup seal might work, or you could use an oversized X-shaped o-ring and have it compress more than normal. It might fill in the gaps. Have you tried a different piece of PVC pipe? Another option might be to use a hose clamp around the PVC pipe to force it to conform to the piston housing. If the pi...
by Moonbogg
Sat Aug 20, 2022 2:15 am
Forum: Pneumatic Cannons
Topic: 3D printed internal valve trial
Replies: 7
Views: 621

Re: 3D printed internal valve trial

I think the valve looks great. That looks like the kind of thing I would design myself and I like it. I haven't studied the valve closely, but it just looks good generally. I wonder how strong the plastic will be where those small screws are. The only real concern I have is you mentioned something g...
by Moonbogg
Tue Aug 09, 2022 2:58 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Gel block calibration BB gun
Replies: 4
Views: 450

Re: Gel block calibration BB gun

I'd buy a high-end PCP airgun and swap the barrel with a smooth one for BBs and just use that. You can connect the gun to a large air tank.
by Moonbogg
Fri Jul 29, 2022 3:04 pm
Forum: Ammo & Parts
Topic: Great video testing spud gun failure/safety (ThebackyardScientist)
Replies: 4
Views: 2378

Re: Great video testing spud gun failure/safety (ThebackyardScientist)

Watching a piece of 3" PVC hold until 1000psi+ makes me wonder what it would take to cause my aluminum cannon to burst. I'm starting to think 3.5X combustions just might not have the energy to cause that thing to come apart.
by Moonbogg
Mon Jul 25, 2022 9:44 pm
Forum: SpudFiles Discussion
Topic: Can't believe this site is still going
Replies: 5
Views: 2465

Re: Can't believe this site is still going

Am present. I made a new cannon in 2019 I think it was, and it was quite a project. The site is very low in activity, the glory days of spudding seems to have been in the 90's and early 2000's. Spudding will always have a special place in my heart and I have two special cannons that I will either le...
by Moonbogg
Mon Jul 25, 2022 9:36 pm
Forum: Ammo & Parts
Topic: Great video testing spud gun failure/safety (ThebackyardScientist)
Replies: 4
Views: 2378

Great video testing spud gun failure/safety (ThebackyardScientist)

https://www.youtube.com/watch?v=KqstP9ics2A Great video. He tested hydro testing to failure with PVC and it has enough POP to hurt someone for sure. Not sure if there was air in the line behind the water, but an interesting result. Lots of cool PVC failure testing specifically with spud guns in mind.
by Moonbogg
Fri May 27, 2022 6:04 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Steel galvanized pipes as pcp rifle air chamber
Replies: 4
Views: 1254

Re: Steel galvanized pipes as pcp rifle air chamber

At pressures that high, I would definitely buy something rated for it. I'd be too paranoid to enjoy using the thing. Aren't those galvanized steel caps casted? I don't like the idea of casted, crappy threads. If I was designing a hand-held device for 1500psi I'd actually design it for like 10,000psi...
by Moonbogg
Wed May 04, 2022 2:25 am
Forum: Hybrid Cannons
Topic: Hybrid pumped weapon project
Replies: 19
Views: 3522

Re: Armadas 1500 II (hybrid pump rifle)

That is really clean and very nice. I love that it's a hybrid. So awesome. Nice job!
by Moonbogg
Sun Apr 03, 2022 7:39 pm
Forum: Pneumatic Cannons
Topic: Food Mold-Gas pneumatic build
Replies: 6
Views: 1875

Re: Food Mold-Gas pneumatic build

Lasagna cannon fired while in oven.
by Moonbogg
Sat Apr 02, 2022 5:35 pm
Forum: Pneumatic Cannons
Topic: Food Mold-Gas pneumatic build
Replies: 6
Views: 1875

Re: Food Mold-Gas pneumatic build

It was an April fools joke. Teehee
by Moonbogg
Fri Apr 01, 2022 2:57 pm
Forum: Pneumatic Cannons
Topic: Food Mold-Gas pneumatic build
Replies: 6
Views: 1875

Food Mold-Gas pneumatic build

I'm nearing the design completion of a mold-gas pneumatic build. It has a larger than typical pressure chamber and a large cleanout-style threaded plug at one end. You fill the chamber with sourdough bread starter and cheese and wait for gasses to build then fire the cannon. I know the rate of fire ...
by Moonbogg
Tue Mar 29, 2022 9:11 pm
Forum: Pneumatic Cannons
Topic: Throwbag Cannon
Replies: 7
Views: 2268

Re: Throwbag Cannon

PVC vs ABS crush test


PVC air pressure failure


ABS air pressure failure


ABS wins.