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Posted - Oct 30 2003 : 07:01:59 AM
hey i was wondering if someone could tell me how to make a spudgun..well not a spudgun...but something similar...i guess a pengun. like shoot peas and bits of potatoe...combustion and i could fire it at friends and muck around with it...
goto http://geocities.com/ftwchriso
that is my design..its like a gatorade bottle with an ink pen barrel and a gass grill ignightor in the endcap...
any suggestions?
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| 7 L A T E S T R E P L I E S (Newest First) |
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Posted - Feb 06 2004 : 01:17:11 AM
Yeah, I had the same problem with getting the exhaust out, but wouldn't the water short the spark? |
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Posted - Jan 29 2004 : 4:56:46 PM
Making small spudguns is easy as long as you don't want overly much power. In fact, the smaller the gun is, the easier it can be to build.
PET plastic bottles make good combustion chambers, if you can find some way to attach the barrel securely. I made one from a 2 litre bottle, with a plastic pipe simply duct-taped over the neck screw, and a BBQ igniter fly-leaded to a spark gap. I had problems with aspirating this design as the only opening was the barrel, I had to fill it with water after each firing to get all the exhaust gases out. This design could in theory be scaled down, try finding one of those 250ml PET bottles (in UK, brand name Panda Pops), make a small neat hole on the bottom to take your barrel (pen casing, thin metal tube etc.), and a spark gap near the neck which would be the filling hole. The bottles can take a lot of pressure as long as you don't go mad with it. My ultimate goal with one of these is to make a handgun-style spudder with the piezo igniter as the trigger :).
Hope this helps, just experiment- it never hurts.
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| the SPECIALIST |
Posted - Jan 08 2004 : 7:34:07 PM
i made a mini cannon. wat i did was i took a hard pill bottle and a pen tube. i glued the pen barrel in and taped the out side. for ignition i used the igniter from a bbq lighter( those hand lighters were a flame comess out of a long tube) its a lot of fun.
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Posted - Oct 30 2003 : 10:26:08 PM
I built my own mini spudgun out of a plastic bottle, it shot out pill bottles pretty far. The pill bottle projectiles had tap around them so that there would be a tight seal to the bigger bottle. It used the neck of the bottle as a barrel (like 2 cm)! I accidentally broke a glass picture frame with just an empty plastic pill bottle.
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| cirvin |
Posted - Oct 30 2003 : 7:58:42 PM
i had fun by taking the confetti popper things apart and using them in pens to shoot rice and lead shot
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| BEatonNo1 |
Posted - Oct 30 2003 : 5:32:38 PM
well at the fair they sold this little plastic gun, which was basially a plunger and barrel, you stuck it into the potato and got a little peice and it fired them pretty good
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| Nerf Smurf |
Posted - Oct 30 2003 : 12:10:12 PM
With a Gaterade bottle? if you ignite that you will have plastic every where. you should reinforce it with tape. Strong tape. although it still might blow. For a mini spudder i ould use a White-Out bottle using electrical ignition system. to refill the combustion chamber ill use the little straw that come with WD-40 |
