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Joel's Mega Launcher

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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Joel's Mega Launcher

Unread postAuthor: PCGUY » Sat Feb 05, 2005 5:03 pm

<div align="center">MEGA LAUNCHER

More info about this cannon can be found <a href="http://www.spudtech.com/detail.asp?id=50">HERE</a>.</div>
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Last edited by PCGUY on Thu Mar 23, 2006 12:45 am, edited 1 time in total.
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Unread postAuthor: sgt pauley » Fri Jan 13, 2006 1:47 pm

GOd that thing looks wicked ! nice job ! Wished i could do this stuff still? Just wanted to say nice cannon, best regards, Sgt.Pauley
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Unread postAuthor: spudzinger » Wed May 24, 2006 5:42 pm

Geez, What kind of PSI are you using on that thing.What does it shoot , chickens?Th Myhtbusters would be proud.Cool gun.
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Unread postAuthor: spudmonkey » Wed May 24, 2006 5:50 pm

i could get into so much trouble with that, cool gun
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Unread postAuthor: Viper » Sat Oct 07, 2006 12:19 pm

it is amazing that this goliath is actually portable. that thing must suck up air like you wouldn't imagine.
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Unread postAuthor: AmYisroelChai » Sun Apr 08, 2007 2:28 pm

I know this is old but PC Guy this came up on the Random Cannon side image and I had a quick question.

I see that Joel both fills the twin Chambers and checks the PSI all from the handle. Is that accurate?

That would save me money having to put a PSI on each gun, i can just go with a setup like the above.

When you get a chance..

Nice cannon.
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Unread postAuthor: Navigator7 » Sun Apr 08, 2007 2:54 pm

Am,
That cannon inspired me too!
I think the Mega design is good for any size cannon except I would change the design so when you are practicing Redneck Roulette and shooting straight up in the air....the force from the cannon is straight down into the ground as you see with my cannon. It's good straight up and down but not so good at a 45º. I would change the design with 45º chambers.

I liked Joel's video of a water bottle going sideways thru plywood with virtually no argument from the plywood.
I'm sure there is a jumper line somewhere on his cannon that makes the two chambers common.
I use two pressure gages on my WaterDawg™...just to make sure as I normally fill from a 2500 psi nitrogen tank.
Image

Then..... there was the flour episode at Spudtech:
Image

Memorial Day is fast approaching.....I need to shine things up.
Here my gun toting family elected not even to go shooting as is family custom instead...we drank beer and landscaped my backyard. Watch the plywood argue with the projectile on this video:
http://web.mac.com/charlesgallup/iWeb/S ... 16AB0.html
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Unread postAuthor: schmanman » Sun Apr 08, 2007 4:09 pm

I was also inspired by the mega launcher, and by your waterdawg.

when I built the swat, I wanted the biggest gun out there, so I used 10 feet of 6 inch air chamber, and a 18 foot 4 inch barrel, along with the now 27 foot long 2 inch diameter barrel.
seen here...

http://www.spudfiles.com/forums/viewtopic.php?t=7093&

Image

the tip of that barrel is at least 10-12 feet off the ground. (the picture below)

Image
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Last edited by schmanman on Sun Apr 08, 2007 8:53 pm, edited 1 time in total.
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Unread postAuthor: A-98 » Sun Apr 08, 2007 4:15 pm

WOW nav7. i wouldnt call that much of an agument, i think it was pretty one sided.

also, kudos to you, you have a mac! macs are better.....
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Unread postAuthor: Kenny_McCormic » Sun Apr 08, 2007 7:10 pm

that is cool gun but the cleanout on that 4 way isnt pressure rated
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Unread postAuthor: Specialist » Sun Apr 08, 2007 7:44 pm

thats right A-98 macs are the bombdigity! all hale the macs! back to the gun it is awesome! good job! :D
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Unread postAuthor: DasGestapo » Sun Apr 08, 2007 8:07 pm

i may build something similar this summer while im in vermont and have access to my machine shop

i really want to build something that shoots shells
it would be very howitzery
oh well
ill put plans up once i make them
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Unread postAuthor: locksmith » Sun Apr 08, 2007 8:16 pm

Great design i am working on one with a thirty gal air compressor tank
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Unread postAuthor: veginator » Tue Apr 10, 2007 4:13 pm

OH MY GOD. I built something like that but smaller and a lot crappier
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Unread postAuthor: Blitz » Tue Apr 10, 2007 4:35 pm

The big cannons never get old.

I kind of had to start from scratch when I moved out of my parents 2 years ago into my apartment, but while I was living there, I couldn't really build/fire anything because I'd totally spook my neighbors. So I had to patiently wait until I got my own house...

Fast forward to February, when I finally have my own place to live and my own garage... I already got myself a nice little drill press, but I'm saving up for a lathe and miter saw.

Once that happens and I save a bit of $ for parts... Well, my garage is ~21 feet long. That's about how large my big gun will be. And all I can say is good thing I have a trailer hitch on my truck! lol
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