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Spudder's Design Tool (SDT)

Last post by D_Hall « Sat Jan 17, 2026 6:43 pm
Replies: 34
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by D_Hall » Tue Sep 02, 2025 10:48 pm » in General Cannon Discussion

First post

If you've read THIS THREAD , then you know I'm writing a replacement for GGDT/HGDT. The replacement is a single spreadsheet to replace *both* GGDT...

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I believe this makes sense. Thanks for your explanation! Is it correct to say that the best time scaler value for a given design is one that puts the...
34 Replies

43080 Views

Last post by D_Hall
Sat Jan 17, 2026 6:43 pm
3D Printed Air Tank and Barrel

Last post by jackssmirkingrevenge « Wed Jan 07, 2026 11:53 am
Replies: 6
by Flash » Thu Nov 20, 2025 1:34 pm » in Pneumatic Cannons

First post

I wanted to showcase my 3D printed air tank and barrel. I made both by printing a thin shell followed by wrapping it in carbon fiber. I have it...

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I no longer worship at the epoxy altar as much as I used to but that is some pretty awesome stuff, great job!

6 Replies

3853 Views

Last post by jackssmirkingrevenge
Wed Jan 07, 2026 11:53 am
Pistelle X68

Last post by jackssmirkingrevenge « Wed Jan 07, 2026 11:38 am
Replies: 1
by Anatine Duo » Fri Jan 02, 2026 9:04 pm » in Pneumatic Cannons

First post

How would you build a Pistelle X68?

Mod an HDR68? Build from scratch, air powered?

Last post

I would look at the Tippmann TiPX as a basis for upgrade, it uses an air actuated blow-forward valve and regulator pressure is capped at 350 psi by a...

1 Replies

796 Views

Last post by jackssmirkingrevenge
Wed Jan 07, 2026 11:38 am
DIY Automatic Marble Shooter from Recycled Materials

Last post by annasmith « Sat Jan 03, 2026 3:13 am

by annasmith » Sat Jan 03, 2026 3:13 am » in General Cannon Discussion

I’m planning a DIY project to build an automatic marble shooter using only recycled materials like plastic bottles, PVC pipes, and old springs—no...

0 Replies

109 Views

Last post by annasmith
Sat Jan 03, 2026 3:13 am
fire extuinguisher cannon

Last post by tatertime « Mon Dec 29, 2025 10:12 am

by tatertime » Mon Dec 29, 2025 10:12 am » in Pneumatic Cannons

what size fire extuinguisher and what type would be decent for a cannon? or at least i feel like a fire extuinguisher would work well. also what...

0 Replies

71 Views

Last post by tatertime
Mon Dec 29, 2025 10:12 am

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