I scored some nice limited-edition anodized aluminum 7-11 Slurpee straws recently with the thought that I'd like to try to use one to make a nice all-aluminum mini spudgun. I have an aluminum cable TV fitting with o-ringed caps I'd like to use for the combustion chamber. I'm going to sand and polish...

I made my inline combustion with cellcore PVC and it works fine. I've fired lots of spuds through it already...

First thought, build a real spud gun instead of mucking about with bottles and matches. You're gonna burn yourself.

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Measure everything and convert it to inches and go from there.

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I'm in Oregon. I'll have to visit the plumbing supply place some time here and see about getting the good stuff for my next build. I've run another 20 lbs of spuds through it and I seem to be getting between 500-700 feet if my estimation skills are any good. I've recorded one shot of 550 feet with a...

Not sure where you are located, but Home Depot and Lowes sells short 2' and 5' sticks of pressure rated PVC. You'll probably be ok with this spray a pray model, but cell core materials are considered bad practice when building a spuddy. Also, with your performance hop ups, your fan and dual spark g...

The ABS is fine. Plenty of people have used foamcore ABS (also known as cellular core) for combustions. SpudBlaster15, Pete_Zaria, and plenty others that don't pop into mind now. I think the design is good. There's no need to wrap the whole thing in electrical tape, either. If the ABS decides to go...

I can hear the vultures already. What you have made is an accident waiting to happen IMHO. What possesed you to use such crappy materials? Don't say money either- if you can't afford to make it safe please don't make it bro! It won't blow up straight away either, but it will eventually. Be carefull...

I previously built a gun with a 3"x10" chamber and a 38" 1.5" barrel; it shoots spuds pretty well, so I decided to go one step bigger. Couldn't resist. I'm using propane from a trigger torch for fuel and self-regulating it by counting, heh. Planning on building a regulator setup sometime soon. I don...