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Pumpkin Cannon

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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Pumpkin Cannon

Unread postAuthor: PCGUY » Mon Jan 31, 2005 12:12 am

<div align="center">PUMPKIN CANNON

Provided By - John

Here is a picture of a 4" dia coaxial gun with an 8" X 4' chamber. This cannon shoots small pumpkins or large grapefruits over a quarter of a mile at 40 psi. Good fitting and hard pumpkins have flown nearly 1/2 mile at 75 psi, although the short 8' barrel makes for erratic flight at this pressure. The valve is an 8" diaphragm style with a simple 2" ball valve trigger.

Provided By - John</div>
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Last edited by PCGUY on Fri Mar 10, 2006 11:56 pm, edited 1 time in total.
Yes, I am the guy that owns & operates SpudFiles (along with our extremely helpful moderators).
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Unread postAuthor: syco kilaa » Mon Jan 31, 2005 3:27 pm

alll that I cna really say here guys, is, DAMN!!!!!!! that is a big azz mutha freakin' cannon!!!!! I wonder how much that thing weighs, you should add some more barrel to it so that you can launch a grapefruit about 2 miles at like 110 psi. I bet that it would blow it self back into the ground!!!!!hahaha :lol:
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Unread postAuthor: theexp » Mon Jan 31, 2005 6:38 pm

i'll give you a dollar if you hold that, and try to shoot it. lol just kidding, i wouldn't try that for 50 bux.

THat is a BEAST. that is awsome. 2 inch ball valves are so hard to open. hOw long did it take you to wear it in?
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<img src="http://www.spudfiles.com/uploader/uploadFiles/post-12-1064980630.gif">

My website www.freewebs.com/potato_cannon/
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Unread postAuthor: Mac_User » Thu Jun 02, 2005 8:10 pm

Could you tell me how long it took for you to create it?
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Unread postAuthor: Caboose » Thu Jun 16, 2005 5:11 pm

how do you make it
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Unread postAuthor: iamthewalrus » Thu Jun 16, 2005 5:13 pm

i think its just a really big diaphram cannon caboose
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i got connections with the modfia, watch who ur talkin to noob.


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Unread postAuthor: spudshot » Thu Jun 16, 2005 5:14 pm

first you take a hammer, then you smash all of your fingers. :D

really, if you plans on something that big and complicated you shouldnt be messing with these, pressure in plastic pipe is a VERY dangerous thing an explosion means shrapnel, and PVC doesnt show up in X-rays, so pray the DR can find all of the pieces
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Unread postAuthor: bubblebathman » Mon Oct 03, 2005 12:20 pm

lol yea I woulnt want to be next to this when it goes off :shock: :evil:
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Unread postAuthor: Brother_Bear » Mon Oct 17, 2005 12:58 pm

I read somewhere that ABS plastic is best because it rips rather than shatters when the pressure get to high.
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Unread postAuthor: spudshot » Mon Oct 17, 2005 4:43 pm

it does rip, but its not pressure rated, and if constructed right a PVC cannon will never explode on you, PVC is pressure rated, that just adds a safety factor to cannons, and most people will agree only use PVC in pneumatic cannons
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Unread postAuthor: mouse kid » Tue Feb 07, 2006 6:08 pm

This cannon is very dangerous looking, but I guess it's safe as long as it can take the pressure. Have you ever found the pumpkins/grapefruits that you fired? :D
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Unread postAuthor: beebs111 » Tue Feb 07, 2006 9:12 pm

lol that wasnt a dead topic at all yeah and that guy dosent post here :!: :twisted: this was posted bout 1 year and a month ago do you really think that this dude is still surfin the forums !!!!!no!!!!! jesus make some forking connections
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Unread postAuthor: SpudStuff » Sat Apr 08, 2006 12:02 am

thats asome is that a fitting at the top or just a home made filling
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Unread postAuthor: jjk92 » Wed Apr 26, 2006 3:09 pm

dead topic dead shmopic i dont understand what acomplish in calling people out
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Unread postAuthor: )DEMON( » Thu Apr 27, 2006 1:35 am

you seem to like bringing back old topics
So do you...
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Forever dreaming...
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