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My New Guns...Finished! :D

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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My New Guns...Finished! :D

Unread postAuthor: watto » Thu Apr 10, 2008 1:09 am

I'm building another coaxial, This ones gunna be real small and light. All I have to do is glue it together which I will probably finish tomorrow, It's about 50cm long with a PN18 40cm 25mm chamber, PN18 40cm 15mm barrel and 1/2 inch ball valve as the pilot. The piston is a 15mm coupler sanded a bit and filled with hot glue, It has a neoprene sealing face and some neoprene curled into a cylinder on the back as the bumper. The cap has an elbow tire valve off a wheelbarrow epoxied into it and inside has some stacked neoprene for the pistons bumper to hit. The C:B ratio is about 0.7:1 so should be quick to fill but still do some damage.

I'm also changing my old 50x15 piston gun, its ratio was 5.5:1 so it wasted a lot of air. I'm chopping it at the reducer and chucking a long 25mm barrel on instead, should be a lot quicker to pump and more efficient.
...
...
...

Finished Just need to paint them, They both seal at low pressure and Ive shot them both at 20PSI so far :D :D
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Attachments
1.JPG
thats about 45cm
2.JPG
The guts of it
3.JPG
some more of my favourite material...with neoprene barrel spacers
4.JPG
Heres the 25mm barrel I'm putting in my old 50mm piston gun, those are wooden dowel plug things for spacers
Last edited by watto on Tue Apr 22, 2008 1:19 am, edited 3 times in total.
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Unread postAuthor: Blitz » Thu Apr 10, 2008 2:07 am

Nice, reminds me of the gun I just posted. :)
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Unread postAuthor: Carlman » Thu Apr 10, 2008 2:36 am

wow your using the same fill valve i was going to use on my next gun! but mines from a scooter wheel and it has a nut on one side and a bit of the inner tube on the other for sealing

nice, cant wait for its test shots :D
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Unread postAuthor: camdaman38 » Thu Apr 10, 2008 4:14 am

Yes very nice Watto cant wait to see some damage pics to come along with it.

Also when are you starting your new GB gun? or havnt you found the pipe that fits a GB nicely yet?

Still will be cool once you finish it and get some damage pics on here.

Cameron
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Needs paint...

Unread postAuthor: watto » Sun Apr 13, 2008 9:15 am

Needs paint I know but they both work good :D
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Unread postAuthor: bigbob12345 » Sun Apr 13, 2008 9:24 am

Make sure those bell reducers arent DWV

Other than that and the primer stains nice guns.
I like them a lot
You have just inspired me to go make my own full sized coax as the only coax i have ever made was a mini.
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Unread postAuthor: watto » Sun Apr 13, 2008 9:54 am

bigbob12345 wrote:Make sure those bell reducers arent DWV

Other than that and the primer stains nice guns.
I like them a lot
You have just inspired me to go make my own full sized coax as the only coax i have ever made was a mini.


Dun worry man they dont even sell DWV where I got this stuff, You can spot DWV reducers easy cos theyre a bit different colour and are paper thin, the reason I use bell reducers, is because they seem to be easier to find than reducing bushings. All the stuff on all my guns is PN18 which is heaps stronger than SCH40 closer to SCH80, although PN18 reffers to 18 bar not the PVC wall thickness like SCH.

I lost the brush for the primer :lol: that explains the stains but I'll paint them nice and black, put this strong as green laser on the small one then put them in the pneumatic showcase 8) :D
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Finished :D

Unread postAuthor: watto » Tue Apr 22, 2008 1:18 am

Paints still a bit wet but theyr done 8) Theres a bit on the small one to fit my high powered laser. :P

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Unread postAuthor: Carlman » Tue Apr 22, 2008 1:25 am

looking very good there mate :D

nighttime raids

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Unread postAuthor: jrrdw » Tue Apr 22, 2008 7:06 am

A spudder in the dark, I like it! You going to clear coat over the black when it dries?
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Unread postAuthor: JDP12 » Tue Apr 22, 2008 7:28 am

wow... those are some nice guns and that black paint job makes them look absolutely insane!!

good job
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Unread postAuthor: XxtriviumxX » Tue Apr 22, 2008 7:45 am

Yeah that black paint job is awsome.

Your going to be a ninja spudder with those cannons. :D

Send some carnage pics, or better yet vids if you can. :)
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Unread postAuthor: watto » Tue Apr 22, 2008 7:46 am

Amazing what a paint job can do aye :D


jrrdw wrote: You going to clear coat over the black when it dries?

Should I? What should I use some kind of automotive clear coat spray?
XxtriviumxX wrote:Send some carnage pics, or better yet vids if you can. :)

When It's all dry Ill do some pics and videos and put it in the pneumatic showcase 8) :D
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