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What's the next big thing?

Last post by Dumbascii « Thu Jul 09, 2026 1:08 pm

by Dumbascii » Thu Jul 09, 2026 1:08 pm » in Combustion Cannons

Thanks @PCGUY inviting me to return after all these years.

What are the most dangerous things (combustion) since the Taternator II ? I lost...

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4124 Views

Last post by Dumbascii
Thu Jul 09, 2026 1:08 pm
SpudTech archive

Last post by btrettel « Mon Jul 06, 2026 7:07 pm
Replies: 2
by btrettel » Sat Jul 04, 2026 2:21 pm » in Website Discussion

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Are there any plans to bring back the SpudTech archive? It was useful from time to time.

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I don't know how many people would use it, but I would find it useful. I've been developing a new pneumatic gun simulator. In my old notes for my...

2 Replies

10846 Views

Last post by btrettel
Mon Jul 06, 2026 7:07 pm
Tire Bead Blaster Modification

Last post by hey_allen « Sun Jun 28, 2026 11:24 am
Replies: 3
by treehousedan » Fri Mar 20, 2026 8:06 am » in Pneumatic Cannons

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As an arborist needing to get a pilot line over a specific tree limb I have many options but my current addiction is air cannons. When I saw a video...

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Huh, I didn't know Home Depot stocked them as well, but had been eyeing one on Vevor's site that appears to be identical, but around $70.

3 Replies

250839 Views

Last post by hey_allen
Sun Jun 28, 2026 11:24 am
Propane gun build

Last post by jimmy101 « Sat Jun 27, 2026 3:40 pm
Replies: 1
by Mb01 » Sun Jun 21, 2026 7:27 pm » in Combustion Cannons

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Before I build I want to see if my calculations are correct. If I start with the 1.5:1 ratio, I will have a 4 inch x 18 inch chamber and a 2 inch by...

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The propane should be 4%, so about 148cc.

Your chamber is 50% bigger than it needs to be. Might as well scale everything so that the fueling is a...

1 Replies

2562 Views

Last post by jimmy101
Sat Jun 27, 2026 3:40 pm
Boyles Law / Burnt Latkes Fuel Metering Calculation

Last post by Ratguy « Wed Jun 24, 2026 2:49 pm

by Ratguy » Wed Jun 24, 2026 2:49 pm » in Combustion Cannons

This is more of an informational post for people who are starting out and are not familiar with Boyles law. I decided to post this because I was...

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5689 Views

Last post by Ratguy
Wed Jun 24, 2026 2:49 pm

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