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copper guns

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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copper guns

Unread postAuthor: Spudgun on Crack » Sat Jun 23, 2007 7:59 pm

Just asking if you could post links to copper potato guns because i want to try to build a powerful rifle that can drive a marble or slug through 1/8in ply board from 100ft away. that looks tricked out with minimal parts.

I now have lots of copper fittings, tubing and every tool needed to work with them so it would be nice if i could see one that is already made.

Thanks
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Unread postAuthor: pyromaniac » Sat Jun 23, 2007 8:03 pm

http://www.spudfiles.com/forums/viewtop ... html#94752

the copperhead rocks. you said a tricked out look you got it. but try to think up some new desighns ok?
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:pottytrain3:
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Unread postAuthor: MrCrowley » Sat Jun 23, 2007 8:07 pm

<A HREF="http://www.spudfiles.com/forums/search.html">Search</a>
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Unread postAuthor: mopherman » Sat Jun 23, 2007 8:08 pm

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Unread postAuthor: hi » Sat Jun 23, 2007 8:50 pm

the third one that mopherman posted is mine, just in case you want to know.
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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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3d models are here

Unread postAuthor: Spudgun on Crack » Sat Jun 23, 2007 8:57 pm

HEY HEY I HAVE MY 3D MODELS WOO HOO!!!!!!!!

Wana see, by the way this on is not finished so tomorrow i will have an updated copper gun with textures and things to put into the final design.

O and if you have a serious design i can make a 3d model for you which is nice thanks.



[img][img]http://img2.freeimagehosting.net/uploads/th.83253f99c0.png[/img]

[img][img]http://img2.freeimagehosting.net/uploads/th.ee681d71db.png[/img][/img]
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Unread postAuthor: VH_man » Sat Jun 23, 2007 8:59 pm

does anyone know where to get cheap copper?

i was in lowes, and i saw all the copper pipe, and then i saw the 2 inch copper... then i saw the price....

275 bucks for 10 feet!!!! GAHAHAHAAA

i guess its worth it for that cool copper shine............
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Unread postAuthor: Spudgun on Crack » Sat Jun 23, 2007 9:12 pm

Those are pneumatic copper guns, are there any combustion copper guns to date because thats what i want to build, i don't have a problem with air powered but i do not have solenoid valves, just these crappy ball valves which are kind of hard to open.

also can you use a bicycle tire valve like this one to pump air into a copper gun?????? Because i don't have an air compressor and i need to get one. So a bike pump will have to suffice for know.

[/img]http://www.germes-online.com/direct/dbimage/50114262/Bicycle_Valves.jpg[url]

Well i think i like copper better than pvc just because it feels more real,[/url]

Merged:

was watching a video on youtube and the guy said that you can fill a copper pipe gun with c02 is this possible? or nitrogen?

I have 2-20oz tanks and 3-9oz tanks not to mention a 88ci 4500psi nitro tank and a 49ci 3000psi tank.

if they can be charged this way do i need special valves because these tanks were made for paintball and i have many air lines for them.
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Unread postAuthor: VH_man » Sat Jun 23, 2007 9:22 pm

if youre making a copper combustion do a pure oxygen/Mapp gas cannon. if youve got the infastructure, use it to the fullest extent (sure its not infastructure, but you get the point)........
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Unread postAuthor: hi » Sat Jun 23, 2007 9:25 pm

yes there are copper combustions, but only small ones due to cost.

you can use co2, but you need a regulator. strait from a tank and the thing would explode. i wouldnt take type M copper over 300 psi, but even that is pushing it.
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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: Spudgun on Crack » Sun Jun 24, 2007 1:16 pm

I got some parts for a pneumatic copper potato gun which should be good but i ended up getting copper pipe coupling sections because they were small and precut i assumed they were the actual pipe but no they fit over the pipe so all the other fittings that i have won't fit the pipe. I was able to buy a 1/2 threaded ball valve, 2 male 1/2 inch adapters, 3/4in to 1/2in coupling and a 3/4in endcap for this but i do not have any pipe or propane for my torch so i have to go get that right now but this should lug things a few hundred feet!

The air storage tank is 2ft long of 3/4in pipe the barrel is 2ft of 1/2 inch pipe so it will be long and it will be a pain in the a$$ to fill with a bike pump!

here is a model of it.

[img][img]http://img2.freeimagehosting.net/uploads/th.f62a4bb09e.png[/img][/img]
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Unread postAuthor: Spudgun on Crack » Sun Jun 24, 2007 2:33 pm

Check it out!

I got the pipe for the potato gun and i am building it right now, i still need a tire valve and propane to solder it together but as for the rest i have it.

http://www.spudfiles.com/forums/viewtop ... html#97487

I posted pictures so you can take a look but as i said it still needs to be soldered together.

It is one big gun over 4ft long lol, i hope it shoots really far and fast.
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Unread postAuthor: mark0491 » Sun Jun 24, 2007 4:08 pm

Hey try your salvage yard for cheap copper piping i go thier for small engine parts and they always have some[/i]
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Unread postAuthor: TurboSuper » Sun Jun 24, 2007 9:29 pm

My pneumatic is part copper. I got like 20' of pipe for $3 at a garage sale.

Yay me.
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