the pipe is 30 inches and the truck is a GMC Sierra 1500 extended cab

I just got a truck load of aluminum pipe. It's 30" long and has an i.d. of 2.13". I want to make an inline combustion gun but I'm not sure how to put the electrodes into the gun because it's aluminum. Does anybody know anything about aluminum combustions. Suggestions are welcome.

I just sent a wet pair of tighty whitey underpants into someones yard. It's dark out and tomorrow I'll see if I can find where they landed. Has anybody else used this as a projectile? If I am the first to do this I hope it will help this wonderful community to have fun and send underpants into orbit.

I just got EVBEC v1.5 and I'm going to try and figure it out.

Is there any tools out there to like GGDT for combustions? I live in Madison WI and the only time i get for testing is leading up to the 4th of July or when I go camping. I would like to build a pneumatic to equal the power of my combustion and make portable and use a bike pump. I don't want to have...

Never mind it was shorting in random places and the electrodes were dirty. I cleaned it up and used starting fluid and it works perfectly.

Wouldn't the cloud of metal explode like flour or dust in a silo. I saw in the movie One Flew Over the Cuckoo's Nest that they had jelly with metal shavings in it for electroshock treatments. Could you use petroleum jelly?

it worked with starting fluid when it was in for a while and i uncapped it and it made a big fire. last summer it worked fine with hairspray i just had to sand the electrodes.

i tried to air it out. when i took the cap off with the starting fluid and clicked my sparker it flamed like crazy the i did with the cap on and nothing even nothing in the barrel. if i hit the electrodes will that get them "wet" and they won't spark?

i have bbq grill ignitor with electrodes in the chamber. i used hairspray that has propane in it also i used starting fluid with ether in it. i was getting good consistent sparks. i also played with air to fuel combinations. all day trying and got 3 crap shots. my chamber is 4"x15" barrel is 2"x48"

I want to build a pneumatic and was was wondering if this design is worth putting together. It would be a 2"x36" chamber and barrel with a 2" barrel sealing piston using this http://www.spudfiles.com/forums/viewtopic.php?t=6214& . Also I was wondering is mouse pads would work for seals. Finally are ...