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My plinker

Built a BB Machine Gun? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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My plinker

Unread postAuthor: jor2daje » Mon Dec 22, 2008 11:31 pm

This is a little gun I made, I wanted to find out if a standard hose nozzle could take over 100psi. I didn't expect much out of this gun but I was pleasantly surprised. I get about 15 powerful shots at 110 psi down to about 80psi.

I tried making this almost entirely out spare parts the only things I had to but were the 7/32" barrel and the 3/4" elbow.

The main chamber is a old propane cylinder I epoxied a shcrader valve into. That is connected to a 3/4" ball valve, this connects to a elbow that connects to the hose nozzle. I used a hose cap with a hole drilled into it to mount the barrel. I used a piece of golf club shaft to support the 30" barrel. I used an old doughnut shaped neodynium magnet over the golf club shaft to hold bullets inside the barrel, and to hold spare ammo. It fires .177 bbs.
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Attachments
1222082001-00.jpg
side view of the gun
1222082002-00.jpg
A close up the valves and tank.
1222082002-01.jpg
Closer view of the hose nozzle and the magnet holding some bbs.
1222082029-01.jpg
This is what happens to a can if you put eight bbs down the barrel.
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Unread postAuthor: CrashTestDummy II » Mon Dec 22, 2008 11:43 pm

Nice plinker you've got there :o

So do you just open & close the ball valve for each shot, to get multiple shots from one charge of the cylinder? Good idea with the golf club shaft. :)
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Unread postAuthor: blind909 » Mon Dec 22, 2008 11:45 pm

Very, um... ghetto. But, i love ghetto guns, so nice gun. It would look even better w/ a paintjob :wink:.
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Unread postAuthor: jor2daje » Mon Dec 22, 2008 11:48 pm

Ya I i just open and close the ball valve.

And ya I know it needs paint, I tried to but the paint I used was terrible and it just rubbed off.
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Unread postAuthor: Xxplosive42o » Tue Dec 23, 2008 12:10 am

It's all about the Kylon Fusion paint. It bonds to everything! But thats a nice little gun you got there, now its time to graduate to better things my friend! hehe :twisted:
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Unread postAuthor: Cosmic Muffin » Tue Dec 23, 2008 1:12 am

that barrel magnet is a good idea.
its a nice little gun, ALTHOUGH, replacing the hose gun with a "pistol grip" blowgun would increase accuracy and probably flow too.
if you wanted to spend 7.50 more on this thing.
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Unread postAuthor: ckman » Tue Dec 23, 2008 3:09 am

not bad nice little prinkler how long did it take u to make?
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Unread postAuthor: jor2daje » Tue Dec 23, 2008 3:57 pm

I actually decided to make this smaller on purpose because I have a larger sprinkler valve pneumatic that is powerful but takes to long to pump up, with this smaller chamber its about 1 shot per pump after I'm up to 80psi.

It took me like two hours with some time waiting for epoxy to dry.
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