Spud Guns

RandomSkater · 10-13-2005, 01:48 PM

NOTE: spud guns are dangerous and serious injury can occur if you shoot someone with one or assemble it wrong.

I've been really into spud guns latelly, researching different methods of making them, different propellants for cumbustions guns and different valves for pneumatics.

I was going to make a pneumatic one, but they're a little more complicated and I wanted one before a big end of the season paintball game me and my friends are doign this saturday.

Right now my gun is sitting out in the garage and as soon as the PVC cement is dry and it's safe to fire, I'm gonna test it out.

Basically all it is is a 2" by 40" PVC pipe for the barrel, a reducer that makes it go from 4" to 2" which is connected to the chamber which is 4" by 12", a lantern lighter with a flint on it (igniter) and a male thread on the back that a plug goes in.

To fire, put a spud (or something that will fit tight in there) down the barrel to the beginning of the chamber, put in hairspray or propane (I prefer propane, close the cap and then spark the igniter and "FWOOM", out flies the spud.

My friend has one that's bigger than mine that we used to put a clean hole through 3/4 inch plywood. Totally awesome.

I'll post some pics on monday.

I'm gonna video tape it too, but I don't have any efficient way of putting it on my computer.

darkangelism · 10-13-2005, 02:14 PM

no USB on the camera? or a/v to usb connector?

Duke · 10-13-2005, 07:32 PM

I've actually never tried a potato gun. I bet getting hit by a spud would hurt like crazy though.

Luba · 10-13-2005, 07:39 PM

Quote:

Originally Posted by Duke

I've actually never tried a potato gun. I bet getting hit by a spud would hurt like crazy though.

It might hurt, but you could always have it for supper...

RandomSkater · 10-13-2005, 10:01 PM

For some odd reason, I haven't been able to get my usb connection to work on my cam-corder.

I should also mention, I had to take back that I said "I have no usee for algebra".
I think I used the ratio to find out the volume of a cylinder 30 - 50 times in the last three weeks.

darkangelism · 10-14-2005, 01:37 AM

is it a driver issue?

Duke · 10-14-2005, 02:21 AM

Are you sure you're plugging it into a functioning USB connection? Not to sound stupid, but my rig has 14 USB connections plus I have a 7 port hub attached. Of course I don't have all of these USB ports enabled but it sure is nice to have that many.

RandomSkater · 10-14-2005, 10:38 AM

wow, 14!?

I'm pretty sure it's not the driver, I may try to figure it out again when I'm not so busy.
-------------
My first spud gun (combustion) specs:
Name: "A"
Fuel: Propane
Ignition: Flint, Lantern Lighter
Barrel: 2" x 40" - 125.6 Cu
Chamber: 4" x 12" - 150.7
C:B Ratio: 1.5:1
Weight: 5.8 Lbs.

Here's a few pics that I took today

Spud gun against my wall

The Chamber

Lantern Lighter Igntion

RandomSkater · 10-18-2005, 10:27 PM

Here's my newest creation.

I had 20" of 2" PVC left from the barrel on the last gun I posted, so I didn't want to waste it.

I give you "The Spud Plunger"!