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| yyttu |
 Posted: 10/15/2006 9:36 AM Post subject: My thoughts on a copper gun. |
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Private First Class
Joined: 07 Aug 2006
Posts: 36
123.12 Spud Bux
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I was just thinking about a copper gun designed around two main things: I'm not too keen on sweating joints, and I want it to be mountable in/on some sort of rifle replica. Here's an idea I drew in paint. I expect it wouldn't be too hard to find threaded copper pipe for a barrel and cut it to a desired length, however I doubt you could get it in just the right size threaded at both ends for a chamber. I thought of using a compression fitting on the end of the chamber to link it to a endcap with valve, but I hear they are unreliable, so I won't be using one of them...Hmm... Also I think the barbs would restrict airflow, but I am not sure how bad that would be relative to normal elbow joints.
Any suggestions here?
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| This is what I am thinking of. |
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| Infernal2 |
| Posted: 10/15/2006 11:26 AM Post subject: |
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Staff Sergeant
Joined: 11 Sep 2006
Posts: 122
274.15 Spud Bux
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| Well, if you don't mind going small you could use copper nipples, a local hardware store carries them up to 6 inches.
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| ammosmoke |
| Posted: 10/16/2006 22:32 PM Post subject: |
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Brigadier General
Joined: 27 Sep 2006
Posts: 916
1635.86 Spud Bux
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| Infernal Maveric |
| Posted: 10/17/2006 10:34 AM Post subject: |
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2nd Lieutenant
Joined: 08 Oct 2005
Posts: 220
684.90 Spud Bux
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Sweating/soldering copper pipe is realy easy.
it would be best for you to make an under/over ball valve gu nto start with. PM me if you want pointers on soldering the pipes.
And for the tubing, it would need to be preasure rated as to withstand the PSI you take it to
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| Benster |
| Posted: 10/18/2006 9:33 AM Post subject: |
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Corporal
Joined: 28 Sep 2006
Posts: 62
26.82 Spud Bux
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When you buy your piping find out if it is solid pipe, or if it is jointed pipe (not sure if those are the correct names or not. There are two way that people can manufacture copper piping, the first is by making a flat piece of copper, then joining it together creating a nearly invisible seam all along the pipe. While this is fine if all you need the piping for is to run water pipe etc. but it can weaken if put under to much pressure. So for pressure, I would recommend the second type of pipe, I beleive it is made by spinning out a peice od copper, so that there isn't any seam to weaken it. This stuff might be a little more expensive, but its better than shrapnel wounds 
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| Hotwired |
| Posted: 10/19/2006 3:49 AM Post subject: |
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UK Spudgunner
Joined: 13 Oct 2006
Posts: 1755
3766.92 Spud Bux
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The second method is drawing a large copper tube through increasingly smaller holes, stretching it and reducing its diameter until it's the correct size.
In the uk I don't think I've ever seen that first type.
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