SpudFiles - SpudFiles

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Compression?

Last post by overdraft « Mon Apr 27, 2026 12:48 pm

by overdraft » Mon Apr 27, 2026 12:48 pm » in Combustion Cannons

Hi All!
I'm making a basic spud gun for an upcoming distance competition that is restricted to hairspray as fuel.
Obviously combustion in engines is...

0 Replies

6627 Views

Last post by overdraft
Mon Apr 27, 2026 12:48 pm
Workin' on a coaxial sleeper build

Last post by Moonbogg « Fri Apr 24, 2026 5:07 pm
Replies: 5
by Moonbogg » Mon Apr 20, 2026 2:32 pm » in Hybrid Cannons

First post

Looks like an average cannon until you see the inside. I used the chamber volume efficiently for valve design to maximize flow with no restriction; 1...

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I'm trying to simplify this thing as much as possible; less parts, less machining, less weight, less cost, while having the chamber volume I want. I...

5 Replies

6175 Views

Last post by Moonbogg
Fri Apr 24, 2026 5:07 pm
2 Inch QEV Cannon

Last post by nleroux « Mon Apr 20, 2026 10:50 am
Replies: 37
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by Jamzearljones » Thu Nov 09, 2017 3:33 am » in Pneumatic Cannons

First post

This is my first attempt at a spud gun, and while I have yet to launch a potato, I am thoroughly pleased with the results. A lot of credit goes out...

Last post

Hi Jamzearljones,
Could it be possible yo use one of you image that you posted this one: for a televison show? Could you write me to my email adress:...
37 Replies

23922 Views

Last post by nleroux
Mon Apr 20, 2026 10:50 am
Leveraging server-grade hardware for high-precision cannon simulations?

Last post by boteh35959 « Mon Apr 20, 2026 9:01 am

by boteh35959 » Mon Apr 20, 2026 9:01 am » in Off-Topic Hobbies

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...

0 Replies

3671 Views

Last post by boteh35959
Mon Apr 20, 2026 9:01 am
Yet another help request

Last post by DumbleJum « Tue Apr 14, 2026 11:10 pm
Replies: 2
by cur » Fri Nov 10, 2023 4:02 pm » in BB, Airsoft, and Pellet Guns

First post

Hello guys. I will try to keep it short. I am a total beginner who would like to learn to build a pneumatic semi-automatic BB gun as a self-defense...

Last post

I tried a similar setup a while back and ran into the same kind of inconsistency. What helped in my case was tightening up the seals and...

2 Replies

55216 Views

Last post by DumbleJum
Tue Apr 14, 2026 11:10 pm

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