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3D Printed Quick Dump Valve

Last post by Flash « Tue Aug 18, 2026 12:07 pm
Replies: 3
by Flash » Wed Apr 29, 2026 12:41 am » in Pneumatic Cannons

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I designed a 3” diameter quick dump valve cannon using a novel trigger mechanism. It’s printed in PETG, has a 2 L air tank, an 18” barrel, fires a...

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this is awesome i randomly return here to check in on the awesome things made and created if it all works out soon ill be back to posting more stuff...

3 Replies

21791 Views

Last post by Flash
Tue Aug 18, 2026 12:07 pm
Anyone use theirs as a frozen bait launcher?

Last post by mbellerose79 « Sat Aug 15, 2026 4:22 pm
Replies: 1
by Broylz » Sat Jul 05, 2025 4:10 pm » in Pneumatic Cannons

First post

I have recently completed my first build with a 4” pic chamber of 48” reduced down to 2” and then down again to 1.5” with a pair of street elbows to...

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Hey, I'm here just created an account for the same exact thought. Large baits, shark fishing, yeeting a massive frozen hunk out 400 yards. Lemme know...

1 Replies

375253 Views

Last post by mbellerose79
Sat Aug 15, 2026 4:22 pm
Leveraging server-grade hardware for high-precision cannon simulations?

Last post by btrettel « Fri Aug 07, 2026 10:27 pm
Replies: 2
by boteh35959 » Mon Apr 20, 2026 9:01 am » in Off-Topic Hobbies

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Hey guys,
I’ve been a long-time fan of the technical depth on this board. Lately, I've been getting really into the weeds with valve efficiency and...

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I think this is probably LLM-generated spam that's trying to get a backlink for SEO purposes. They haven't logged in again since posting, they link...

2 Replies

27772 Views

Last post by btrettel
Fri Aug 07, 2026 10:27 pm
BlasterSim

Last post by avan « Sat Aug 01, 2026 4:02 am
Replies: 3
by btrettel » Fri Mar 06, 2026 5:50 pm » in General Cannon Discussion

First post

BlasterSim is my pneumatic and spring gun simulator. I've been slowly developing this since last year and have decided it's finally ready for a wider...

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I like that you chose an adiabatic model since the firing process happens so quickly. It would be interesting to see how closely the simulated muzzle...

3 Replies

490982 Views

Last post by avan
Sat Aug 01, 2026 4:02 am
DIY nerf rocket launcher

Last post by RocketFoam5 « Wed Jul 29, 2026 8:32 pm
Replies: 2
by Xenophile » Sat Sep 02, 2023 4:09 pm » in Pneumatic Cannons

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Air cannon overview.jpg

I love target shooting, and continue to enjoy the hobby, and I also enjoying engineering and building new things. For my...

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Hello! I know this post is 3 years old, but if you are still on here, could you assist me in making or understanding plans for this build you just...

2 Replies

63389 Views

Last post by RocketFoam5
Wed Jul 29, 2026 8:32 pm

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