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SBC-500

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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SBC-500

Unread postAuthor: Killjoy » Sun Nov 12, 2006 2:41 am

The SBC-500
( SuperBall Cannon 500ft/s)
This is probably my favorite cannon i have ever built. silent, powerful, bolt action, simple and effective. It took me about 2 weeks to finsh (only had like an hour to work a day on it because i had work) and it took me a week to paint it.
The chamber is conctructed out of 3" diameter pvc sch 40 pipe and is about 14" long (98 cubic inchs) and I use a schrader valve to fill the chamber. I used a modded sprinkler which had a threaded 1" inlet/outlet. (I think it was a rain bird). The barrel is 1.5" diameter sch 40 pve pipe and is about 22 inches long (38.8 cubic inchs). That gives me a C:B ratio of about 2.5 to 1. The bolt is a piece of 1" sch40 pvc pipe which I then had to rap with this 8mm think tape so it would fit almost pefectly in the barrel. I used a 1/4 inch bolt to make the handle for the bolt and a dremel to cut the slot in the barrel for the handle.
The orignal ammo was superballs, but after almost being killed in my garage by a ricoche and then later being shot with one at close range(alcohol was the priamry factor in that decision) I begin to look for other ammo. My friend and I found that bbs worked well (with paper as wadding), but the fun of blowing a cardbored boxes to pieces soon wore off. we then put bolts in the cannon, and these could easily peice a 1/4 peice of plywood and my garage door (that was an expensice mistake). Finnaly I put a 1/2 steel rod I had liying around in the cannon, and this was able to pierce a piece of 1/2 inch pywood from about 25 feet away.
here are some pics of SBC-500
Image
Cannon with mag attachment
Image
A closer look at the bolt and trigger(blow gun)
Image
1/2 Piece of plywood after having 1/2 steel rod, lug nut, screwdriver, and a few bolts shot at it.
Image
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Unread postAuthor: Pyro Ninja » Sun Nov 12, 2006 3:17 am

That looks so cool 8)
Very good job
I want to make one like that
:D
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Unread postAuthor: SquishY » Sun Nov 12, 2006 3:29 am

It looks nice but you sure have a lot of dead space, it would get a very good increase in power if you move the valve closer to the barrel. Nice paint to, I like matte over gloss anyday.
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Unread postAuthor: killagorrila99 » Sun Nov 12, 2006 3:47 am

Woh, Me like alot! can we get some damage pics?
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Unread postAuthor: jrrdw » Sun Nov 12, 2006 8:19 am

I particerly like the bolt + magizene set up. You said the barrel bore is 1 1/2"s, did you have superballs that size? I just thought they were all 1".

my cannon.
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Unread postAuthor: Killjoy » Sun Nov 12, 2006 1:18 pm

SquishY wrote:It looks nice but you sure have a lot of dead space, it would get a very good increase in power if you move the valve closer to the barrel. Nice paint to, I like matte over gloss anyday.

yeah i know theres a lot of dead space, i kinda glued the stock upside down cause i wasn't paying attention and was to cheap to go homedepot to get new parts, it still really powerful and looks good so i dont have any problems with it.
also the superballs are just slightly smaller then the barrel( 1or 2 mm smaller), and are about the same diameter as the outer diameter of 1" pvc pipe. You can buy many different size superballs, 1" just seems to be the most common.
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Unread postAuthor: POS » Sun Nov 12, 2006 4:00 pm

Like I said before. Nice gun, nice damage pics, but you can improve performance very much by putting the sprinkler valve next to the breech loader.
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Unread postAuthor: Killjoy » Sun Nov 12, 2006 5:03 pm

ive built i lot of high performance cannons, and this cannon was built more for looks then performance.
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Unread postAuthor: POS » Mon Nov 13, 2006 3:55 pm

Well, you succeeded in what you were willing to do then :wink:
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Unread postAuthor: drac » Mon Nov 13, 2006 4:09 pm

That cannon is a real looker! Nice job on it! :mrgreen:
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Unread postAuthor: experament_u2 » Tue Nov 14, 2006 12:41 am

that is a awsom gun i rely rely like it and with the stock upside down it looks like one of these greanade lanchers nice gun :D
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Unread postAuthor: Can-O-Man » Wed Nov 22, 2006 11:58 pm

wow i have to say that is 10 times better looking than anything i ever built supper nice job and i like how you did it on your spare time, it can be frustrating (i know)
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Unread postAuthor: Killjoy » Thu Nov 30, 2006 9:59 pm

Yeah it was kinda a pain trying to do it on my free time, but man was it worth it.
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Unread postAuthor: Logys » Sat Dec 02, 2006 3:01 am

You look like a retard mate. Its such a common gun nowadys too.
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Unread postAuthor: schmanman » Sat Dec 02, 2006 8:01 am

don't be an a**hole. why do you feel the need to put others down? do you feel bad about yourself, and want to make yourself "superior"?
I think you aer jealous because it is such a nice cannon, and you have not built anything near this cool.

so shut the f*** up, and say nice things, If anything at all.
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