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.50 cal semi auto pball, progress pics added

A place to ask general spud cannon related questions.
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.50 cal semi auto pball, progress pics added

Unread postAuthor: inonickname » Thu Jan 15, 2009 10:35 pm

Here are my plans for a homemade .50 cal semi auto paintball gun. It will be powered by a large air compressor (100+ psi) or a large air tank. (like 6" PVC with caps, made to hold pressure etc).

Will probably be piloted using a hi-flow, modified blow gun.
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Attachments
Paintball valve.PNG
The valve. Air pressure enters through the back, and pushes down the piston. This exposes the holes, the air then travels into the 3/4" chamber, and into the 1/2" barrel.
Paintball valve.PNG (2.95 KiB) Viewed 749 times
Paintball magazine.PNG
Just a simple magazine, might add a springfeed.
Paintball magazine.PNG (1.6 KiB) Viewed 749 times
Paintball Silencer.PNG
Silencer with baffles. May just skip this part.
Paintball Silencer.PNG (1.52 KiB) Viewed 749 times
Paintball assembly.PNG
Complete assembly.
Paintball assembly.PNG (6.08 KiB) Viewed 749 times
Last edited by inonickname on Fri Jan 16, 2009 12:22 am, edited 1 time in total.
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Unread postAuthor: Cosmic Muffin » Thu Jan 15, 2009 10:43 pm

looks like a pretty good design.
but will this system be powerful enough to launch a paintball at an effective velocity?
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Unread postAuthor: SEAKING9006 » Thu Jan 15, 2009 11:05 pm

I'd avoid the suppressor. Legal deathtrap. No matter WHAT you have heard, you HAVE to have it registered or you will be in deep honkey.
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Unread postAuthor: inonickname » Thu Jan 15, 2009 11:34 pm

SEAKING9006 wrote:I'd avoid the suppressor. Legal deathtrap. No matter WHAT you have heard, you HAVE to have it registered or you will be in deep honkey.


I know suppressors/silencers are grey zones as far as everything goes, but they aren't very effective anyway. As I don't want to get a CO2 setup it'll be limited by what air source I'm using, so the silencer probably won't be very effective.

Thanks for the input guys :wink: will probably give the silencer a miss.

EDIT: progress pics.

Image

Valve casing and piston.

Image

Valve closed.

Image

Valve opened.

Image

Inside, valve open.

EDIT #2: Looks like progress is halted for today. We have a friendly family of european wasps moving in to make a home in the shed. And they're agro..
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Unread postAuthor: Hailfire753 » Fri Jan 16, 2009 5:25 pm

Err, I'm not quite sure how it works...
But I didn't really want to devote the mental effort after midterms...
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UPDATED MARCH '08
field-legal paintball semi
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Unread postAuthor: SEAKING9006 » Mon Jan 19, 2009 5:24 pm

Try Using either a bug bomb as a grenade, or Putting on every coat you have and wrap your head in mosquito netting and use some raid.

Of course, I've also heard a combination of flying gasoline plus an open flame to be an effective insecticide.... :roll:
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