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Looking for some guidance

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Looking for some guidance

Unread postAuthor: Jester79 » Thu Apr 24, 2008 8:17 pm

Howdy im new to the forums and relatively new to spud guns , i have one and it works fine however im looking to make more of them and experiment. To save time i was hoping somebody to guide me on how to have Interchangable Barrels on my gun rather than building 4 or 5 guns with different barrel sizes. I searched and didnt find anything so im hoping somebody can help me out. Thanks
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Unread postAuthor: Davidvaini » Thu Apr 24, 2008 8:20 pm

no problem.

Multiple barrels are very easy...

All you would have to do is have threaded couplings on the end of your barrels. To use different barrels you would simple screw in the barrel that you desire.
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Unread postAuthor: hi » Thu Apr 24, 2008 8:33 pm

have a coupling the size as the largest barrel you would possibly want.

for example, if you want barrels from 1.5'' to 3'', then have a 3'' female adapter on the chamber and then use a threaded bushing to go to the barrel size you want.

the best way to figure something like this out is to go to the hardware store and fiddle with random parts until you get what you need.
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"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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Unread postAuthor: Jester79 » Thu Apr 24, 2008 8:48 pm

ok great , ill do that the next time i get paid , thanks a lot guys
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Unread postAuthor: Davidvaini » Thu Apr 24, 2008 9:14 pm

no problem jester, also when you go to a hardware store to fiddle with the different parts make sure the ones you pick out are sch 40 nsf-pw and not DWV.
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