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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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Unread postAuthor: Technician1002 » Fri May 07, 2010 11:13 pm

I leaned into mine when shooting a Gaiteraid from the hip. I had to take a stop back. Keys were in the wrong place in my pocket and I got a huge bruise launching this one. The cannon is a 2 inch valve with a 3 inch barrel.

Edit; Found the link to the bottle launch. I was trying real hard to not take a step back.
https://inteltrailblazerschallenge.wikispaces.com/file/view/3+inch+Gateraid+shot.avi
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Last edited by Technician1002 on Fri May 07, 2010 11:57 pm, edited 1 time in total.
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Unread postAuthor: jackssmirkingrevenge » Fri May 07, 2010 11:55 pm

c11man wrote:but i just have to point out that the recoil is hugely over exagerated by you. just saying it kinda annoying when people make up stuff about the power of their cannon....


To he honest, the holding stance is a little awkward, so the recoil isn't necessarily absorbed as in a "conventionally" stocked launcher.

Nice job going bigger, but please circumcise that piston :) that length of bolt is adding needless weight and restricting airflow, making JSR cry.
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Unread postAuthor: Technician1002 » Sat May 08, 2010 12:00 am

JSR, if you want to cry, I should send you a photo of the piston from one of my very early designs. I could send you a photo of the piston out of my "Light Saber" from the Star Wars era. It was very long. The cannon sucked big time.

We all were beginners at one time or another. I was not a member of Spudfiles back then. Saved me a lot of embarrassment. On the down side, I didn't learn from others before trying stupid designs.
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Unread postAuthor: jackssmirkingrevenge » Sat May 08, 2010 12:30 am

There was a time over 10 years ago that I thought my 75 psi ball valve marble gun was friggin' AWESOME, ah the innocence of youth :)
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Unread postAuthor: mark.f » Sat May 08, 2010 5:53 am

...or my DWV pneumatic with a 3" cell-core chamber and 3/4" barrel (modded sprinkler valve, though)... :roll:
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Unread postAuthor: Gun Freak » Sat May 08, 2010 10:15 am

Yeah it is almost impossible to shoulder fire this one, I now shoot it with the handle resting on a stand and the recoil is easier to absorb.
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Unread postAuthor: Technician1002 » Sat May 08, 2010 10:58 am

mark.f wrote:...or my DWV pneumatic with a 3" cell-core chamber and 3/4" barrel (modded sprinkler valve, though)... :roll:


A little small on the valve for the chamber. Sigh.

ABS makes very nice low pressure launchers. Mine can still punch holes in dead appliances.
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Attachments
DWV test.jpg
ABS Cellular Core cannon test fire May 2010
Marshmallow Destruction.jpg
Just for grins, used the marshmallow cannon with a golf ball barrel and golf ball to finish off the plastic basket and remove the stuck agitator.
Marshmallow Battery.jpg
D Cell fired from a golfball barrel made this hole. I would have loved to have gotten a high speed video of the making of this hole.
Last edited by Technician1002 on Sun May 09, 2010 12:43 pm, edited 1 time in total.
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Unread postAuthor: Gun Freak » Sun May 09, 2010 8:41 am

Bump

Updates added to bottom of original post.
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Unread postAuthor: Gun Freak » Sun May 09, 2010 5:25 pm

Bump, video of firing at a cinder block and the pics added at bottom.
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Unread postAuthor: reedfe » Sun May 09, 2010 6:16 pm

did it leave dents on the camper and boat... your dad would be so pissed lmao. anyways it left a nice sized crack in that cinderblock ;D
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Unread postAuthor: Gun Freak » Mon May 10, 2010 8:03 am

Nah it missed them both... luckily. I need to add a bolt track... i need to get to home depot for some more hose clamps. Any other suggestions for what to add guys?
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Unread postAuthor: clemsonguy1125 » Mon May 10, 2010 8:13 pm

"Bump" for new pictures
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Unread postAuthor: mark.f » Mon May 10, 2010 8:58 pm

Very nice, the paintjob and breech-loading provisions look great.

On a similar note to your update, my very first shot with my first piston-valved golfball cannon ricocheted off a tree and flew past me (although with a good few feet of clearance).
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Unread postAuthor: Gun Freak » Mon May 10, 2010 9:00 pm

Haha nice one, the speed of the ball off the block was very fast, close to the speed at which it hit the block. Thanks for the comment. The little couplings need some major modding now that I painted it, they can't slide over the barrel easily anymore but I got the solution. I think I might start a new thread, this one is getting a little long and I have so many updates that it don't look like Superna anymore :lol:
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Unread postAuthor: MrCrowley » Tue May 11, 2010 7:54 am

The gun is modeled after MrCrowley's, yes, but stock is different and the piston is different. But he did inspire this gun.

Cool to be of inspiration. On my VAL I'm actually planning on cutting off the back stock, takes up unnecessary volume and adds weight. It was only added because the cannon was for a school assignment and it had to be ergonomic.

Nice cannon though, glad it seems to be working well. It sucks living in the 'burbs though, doesn't it? Constantly worried about ricochets and what not.
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