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Superna- 2" Piston Valved Golf Ball Gun WITH DAMAGE

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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Superna- 2" Piston Valved Golf Ball Gun WITH DAMAGE

Unread postAuthor: Gun Freak » Wed May 05, 2010 7:31 pm

DAMAGE AT BOTTOM WITH VIDS AND PICS
MORE UPDATES AT BOTTOM
CINDER BLOCK SHOT VIDS AND PICS AT BOTTOM
PAINT JOB PICS AT BOTTOM :D

Here is my new golf ball gun. Just your run of the mill 2" piston valve with Hubb's design of piston. I have to thank Hubb a lot for this build as he helped with a few things- The piston, modding blowgun, adjustable hop-up, detent to come also. I also have to thank MrCrowley for the inspiration to build this, it was pretty much modeled after his cannon with a different piston and different stock design. Heres the specs:
Chamber- About 7 feet of 2" pressure rated PVC
Barrel- 5 feet of 1.5" sdr 26, yes I know, not a perfect barrel, but I wad the golf ball with some paper towel.
Valve- 2" Tee 1.5" porting barrel sealer
Piston- 1 1/4" coupling plugged and with built in check valve
Pilot valve- 1" Orbit modded sprinkler piloted by modded blowgun
Bumper- Currently some car wash sponge foam and rubber disks, I don't trust it. I put a little piece of rubber garden hose in the inside to reinforce it and open up the hole to the pilot more. I will upgrade as soon as I can get something better.
Until then, I'm sticking with 30 psi.
Which seems to be enough, because it can already punch well through my wood fence, which is about a half inch thick. The golf ball goes past it about 30 more feet.

Pressure gauge and paint job, black fittings and camo pipe, to come when the parts arrive in about 10 days.

I only got one video of a low pressure test fire-
[youtube]http://www.youtube.com/watch?v=EAbOOwlK7mg[/youtube]

This thing is a beast. It is so loud when dry-fired even only at 30 psi. It stands 7 feet 7 inches muzzle to shoulder rest.

Some pictures of the valve:

Valve:
Image

Pilot:
Image

Piston:
Image

Closed:
Image

Open:
Image

From front:
Image

Bumper, I'm scared it isn't enough...
Image

Some pictures of the whole gun now:

Standing up, together:
Image

Back:
Image

Middle:
Image

Adjustable hop-up W00t!:
Image

And that's Superna :D

*Updates soon*

I have added a new bumper, it is a raquet ball cut in half with a hole in the middle. I have taken it up to 60 psi now. Do you think I should go higher?

DAMAGE!!! :D :D

Hole through fence at 30 psi:
Image

All the shots after here were done under 60 psi.

After first test shot at wood plank:
Image
Image

Note recoil on the first two videos! :twisted:
Damage video 1:
[youtube]http://www.youtube.com/watch?v=7mK7EUgst_w[/youtube]

Damage video 2:
[youtube]http://www.youtube.com/watch?v=3J1WfP007Mc[/youtube]

Damage video 3:
[youtube]http://www.youtube.com/watch?v=8XagD-GX6hQ[/youtube]

Damage video 4:
[youtube]http://www.youtube.com/watch?v=ektHG2wJHhc[/youtube]

Damage video 5, sorry for the bad quality. Too bad, it was the best shot. The wood got blown to smitherenes:
[youtube]http://www.youtube.com/watch?v=4bPvN1YTPjs[/youtube]

After all shots (lol):
Image

MORE UPDATES

Added muzzle break and front sights:
Image
Image

Added rear sights, o-ring detent(thanks Hubb :D ) and what I call a slide lock bolt action breech:
Image
Image

Added better barrel supports with repair couplings that the pipe slides nicely in, no modding. I need to get another hose clamp for the bottom one, for now I just hot glued it.
Image

OMG I LOVE THIS THING :D

Another UPDATE:
Decided to shoot a cinder block.
Video:
[youtube]http://www.youtube.com/watch?v=dmN5N6N8804[/youtube]
Pics:
Entry/exit:
Image

Block:
Image

Path the golf ball took after it ricochet'd off the block, note my boat and camper:
Image

That's what not to do when firing a golf ball gun :roll:

UPDATE! Painted the gun, used krylon fusion.
Image
Image

Hope you like it.
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Last edited by Gun Freak on Fri Mar 04, 2011 6:52 pm, edited 10 times in total.
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Unread postAuthor: JDP12 » Wed May 05, 2010 7:34 pm

Very nice!!! Albeit in the wrong section...
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Unread postAuthor: clemsonguy1125 » Wed May 05, 2010 7:35 pm

Like the hopup, have you shot it with a barrel on it yet things a monster can't wait to a updated vid
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Unread postAuthor: Gun Freak » Wed May 05, 2010 7:39 pm

clemsonguy1125 wrote:Like the hopup, have you shot it with a barrel on it yet things a monster can't wait to a updated vid

Yeah remember if you read you would know I put it though wood at 30 psi already.

Very nice!!! Albeit in the wrong section...

Thanks, and thanks. I was almost certain that I put it in the showcase... damn.
MODS PLEASE MOVE, THANKS.
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Unread postAuthor: clemsonguy1125 » Wed May 05, 2010 7:48 pm

I don't read every post but you should post damage pics
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Unread postAuthor: Gun Freak » Wed May 05, 2010 7:49 pm

clemsonguy1125 wrote:I don't read every post but you should post damage pics


I can't, its dark outside.
Tomorrow I'll try for a video and damage.
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Unread postAuthor: clemsonguy1125 » Wed May 05, 2010 7:52 pm

Ok how thickset your fence, funny enough I shot my metal fence by accident and bet a the wire after I shot it through a piece of plywood
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Unread postAuthor: Gun Freak » Wed May 05, 2010 7:53 pm

clemsonguy1125 wrote:Ok how thickset your fence, funny enough I shot my metal fence by accident and bet a the wire after I shot it through a piece of plywood


the fence is about 1/2" thick. I shot my speed limit sign with it and it put niiice dents in it.
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Unread postAuthor: clemsonguy1125 » Wed May 05, 2010 7:55 pm

Speed limit sign , like a real street sign, isn't that illegal
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Unread postAuthor: Gun Freak » Wed May 05, 2010 7:58 pm

clemsonguy1125 wrote:Speed limit sign , like a real street sign, isn't that illegal


Ahhh, who cares...
I gotzz two of them :D :D :D
Pics tomorrow :P
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Unread postAuthor: clemsonguy1125 » Wed May 05, 2010 8:12 pm

whered you get them from
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Unread postAuthor: mark.f » Wed May 05, 2010 8:12 pm

Very nice cannon. Did you draw some of the design from Crowley's piston guns?

Also, don't shoot street signs. :roll:
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Unread postAuthor: Gun Freak » Wed May 05, 2010 8:15 pm

mark.f wrote:Very nice cannon. Did you draw some of the design from Crowley's piston guns?

Also, don't shoot street signs. :roll:


I don't shoot the ones on the road... We have two that we took off the side of the road sort of as a protest that we wouldn't have people driving 30 mph down our road.

The gun is modeled after MrCrowley's, yes, but stock is different and the piston is different. But he did inspire this gun.
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Unread postAuthor: deathbyDWV » Wed May 05, 2010 8:21 pm

Nice cannon... If I remember right, this is your first golfball gun right? Good job. I want to see some damage...
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Unread postAuthor: Gun Freak » Wed May 05, 2010 8:24 pm

deathbyDWV wrote:Nice cannon... If I remember right, this is your first golfball gun right? Good job. I want to see some damage...


Yep, first golf ball gun.
It's also my first perfectly working piston valve. There is practically no leak. I will hook up a gauge and wait to see if there is any leak, but I dont think there is. Pretty awsome. I'll get some good damage pics tomorrow after school. Thanks
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Last edited by Gun Freak on Tue Sep 28, 2010 7:45 pm, edited 1 time in total.
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