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(DM Register)   House damaged by spud gun in apparent fry-by. Ore, Ida still at large   ( dmregister.com) divider line
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73 clicks; posted to Main » on 02 Apr 2003 at 7:46 PM (15 years ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»

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2003-04-02 09:58:58 PM  
GCD Thanks. I'll search around for a longer one, I was thinking I could cut an internal thread on one end, and make a threaded plug for the breech on my lathe. {or maybe thread two lengths together for 60", that would break down in half.} Time to do some cipherin'.
2003-04-02 10:00:37 PM  
I don't suggest building a compressed air cannon out of PVC pipe though.

I've used a cannon that was 200 PSI. The guy who built it was absolutely insane and spent like a month on it. But it was a sweet cannon.

For the average Joe, you're going to be looking for problems with compressed air and PVC pipe.
2003-04-02 10:01:23 PM  
Believe me, you don't want the governor of Idaho as the ruler of North America. While Kempthorne has showed a backbone recently in refusing to slash education budgets any further, his administration has done quite a bit to run the state into the ground.

And he once tried to kill me. At state quiz bowl he gave a speech, commenting that if we "work hard" he'll make sure the "jobs are there for you when you graduate." I nearly choked on my three-bean salad trying to keep from laughing.
2003-04-02 10:07:57 PM  
That story isn't quite as good as a fish and game officer stabbing me. But it's stilly fun.
2003-04-02 10:11:21 PM  
What the hell is wrong with me? Typing stilly fun rather than still funny...I think I need to have my brain checked for tumors.
2003-04-02 10:12:52 PM  
Heh...now thats funny, or stilly even
2003-04-02 10:17:18 PM  
[image from yammer.co.uk too old to be available]

Did someone say propane?
2003-04-02 10:28:09 PM  
that does it you guys have convinced me i need to be in weapons development
2003-04-02 10:39:43 PM  
[image from bryanandsarah.net too old to be available]

Dinner is served, biatch!
2003-04-02 10:50:29 PM  
04-02-03 09:54:39 PM Thebertguy
...pototoes"... holy crap.
Dan Quayle strikes yet again.
I knew I shouldn't have gone to the convention center to go see him speak back around '89. As a bored high-schooler I thought, "I'll get to miss class for this." Look what it cost me! I could have been back at school learning and spelling correctly! Or pondering spud projectile trajectories during study hall.
2003-04-02 11:04:02 PM  
Our spud cannon uses compressed air. We cut a hole in the chamber and mounted an air pressure gauge that you use on tires to tell the pressure. We sealed it up tightly with caulk too. We cut a hole in the back for an inner tube of a tire's um... air pumper in-ner nozzle, and caulked that too. I find that even with a bike pump and 30 PSI you can get a freaking far shot. We use a 6' barrel too, so the potato can really get moving.

Bevelling the edge is crucial though! We just cut it on the outside so that the inner barrel part is untampered with. It cuts it perfectly!
2003-04-02 11:36:26 PM  
I work in a PVC pipe distributorship. The store I work in comprises of about 6 acres, most of it is for storage of various kinds of pipe. Lots of pipe.

Winter makes the construction industry very slow in western Colorado, which means more time to build bigger and better spud (potato) guns. At least for us. So a coworker inspires me to build a monster of a spud gun. 2" barrel, 6" x 24" chamber. It weighs 40+ lbs. PVC mind you. We used a gas lantern igniter for the spark. Mind you, this is simply a beast.

The first test was awesome. As far as a propellant, AquaNet(tm) is the cheapest and most explosive of materials. The spud gun was loaded and primed. Of course I would fire it first. A twist of the striker and >BOOOOM< the potato goes of. Big spud launched about 200 yards. I'm for real, this potato was a bis mutha and we launched a decent distance. It is a cheap-ass projectile launcher.

Potato guns are burly; I mean really burly! We play with them in the yard that I work at and can launch them off of our property line. Apples are especially dangerous; they have juice (natural lube) and can in some cases go twice the distance.

Call it my childish fascination.
2003-04-03 12:02:19 AM  
I made a spud type gun except it fires superballs.... A one inch high grade copper pipe barrel with a fitting soldered to the end that is screwed into a fire extinguisher... powered by Butane, It sounds like a shotgun going off... I made another barrel out of half inch
copper pipe, It fires double A batteries or darts made out of nails with heat shrink tubing hot glued to the end for the flights... I've shot the nail darts 80 yards straight as a arrow into a fence, the dart goes all the way in and can't be removed without a claw hammer. I even made a mini dart gun that has a 1/4 inch barrel and shoots nail darts, It can punch a 1 1/2 nail all the way into a phone book at 50 yards....

/fun times :)
2003-04-03 12:16:52 AM  
ok for spray propellant Right Guard deoderant makes a good choice, the only residue it leaves is not sticky and wont glue your lid on. I dont know if its better or worse than hairspray but its certainly cleaner. Frankly I just like the boomand potatoes flying down the street. I live in an older compact neighborhood so Im really not wanting to send a potato through someones roof. But try Right Guard...
2003-04-03 01:15:38 AM  
I had one of the little tiny potato guns... they shoot bb-sized pieces of a potato. I shot my friend and it went right in his ear. It was great.

Then... I attempted to eat the rest of the potato...raw.
Yeah... not a good idea.
2003-04-03 01:40:18 AM  
My brother used to put these things together, i remember picking him up from someplace and he was firing fireballs out the window of my car.

That all ended when a cop caught him in a empty lot firing the thing to drop spuds on a friends roof, something about having a cop put a gun right up to the back of your head and telling you to drop the cannon i think freaked him out.
2003-04-03 03:10:15 AM  
Avixxen2: Watermelon gun? I've got 12" pressure-rated well casing that can handle the job. The problem is the fittings; seriously expen$ive stuff.
2003-04-03 09:59:50 AM  
Potato guns = funny. Firing potato guns at people = not funny.

Strange story, but it doesn't top the drive-by cannonballing that happened a few years ago right here in my home state...
2003-04-03 12:54:46 PM  
Are we still talking about the watermelon cannon? This has been addressed already: It won't work. (Unless you're using a packing wad, but then it'll take more power to fire)

Save your time and make a PUMPKIN cannon. Those will work nicely. Or pick a smaller, harder fruit, like a grapefruit. Something consistant in size.

All you're going to get out of a watermelon cannon is a big mess.

Pineapples would be very similar to a mortar. They'd work nicely.

You need something with a hard shell or interior (like an apple or potato).

We used to use balls of newspaper wrapped up in duct tape too. Those would fly nicely.

Happy shooting.
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