<div align="center">BCC
Basic Combustion Cannon
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BCC
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PCGUY
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- Joined: Wed Aug 18, 2004 10:54 pm
- Location: Illinois
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- The basic combustion spudgun is great for a first time gun. It's reletively cheap. I spent about $40 on mine and it can be completed in only about one weekend.
Make sure all the pieces fit before you glue. So assemble it all and make sure its ok (dont fire it!) THEN glue! I'd start with the chamber. So take the 3" pipe and attach the coupling to one end. on the other end of the coupling, put the cleanout. OK so that is where you put in the fuel. Take the reducing coupling and put it on the other end of the 3" pipe. Now preping the barrel knife is the hardest part. Get out a dremel tool or a file and on one end of the barrel, grind the edge down so a 'blade' is formed. This takes TIME! SO DONT RUSH IT! But when youre done, it will automaticly cut the potato to size when you shove it in. It's also a good idea to grind down a little on the inside of the barrel. This ensures a good tight fit. - NEWCANNON.jpg (7.88 KiB) Viewed 7165 times
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- Finally attach the barrel to the chamber via the reducing coupling and look at your creation. Now take it all apart and get your primer and cement ready. Unscrew them both so you dont waste time opening and closing cans. Be sure to read all the instructions on the cans. Once you know what to do, get lots of newspapers and lay them out to prevent glue from getting all over the place. Prime each piece one at a time as you go along. Glue it together in the same order as you assembled it before. I reccomend you take the plug out of the cleanout during this process. Let the glue dry overnight.
The next day, get your igniter, screws, 3/4" couplings, handle and wire ready. You will first want to screw the drywall screws into the chamber. These are your ignition contacts. To prevent the barrel from cracking (which shouldnt be a proplem if you have good pipe, but still do this), drill a hole a where you want the screws to go. You want about a 1/4" to 1/2" distance between the screw tips on the inside. You could put them on comlplete opposite sides of the chamber, but I put them closer together. - BARRELKNIFE.jpg (10.55 KiB) Viewed 7165 times
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- OK, your done with that part. Move on the igniter. this part is tricky so be careful. there is a contact on the bottom and a small wire on the side that goes from the top, down the side, and inside. you will need to solder a wire onto that little wire. MAKE SURE you dont drop any solder into the inside of the igniter, and dont try to pry out the little wire, both of these actions will screw it up big time!
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- The wire that comes with the igniter fits onto the contact on the bottom on the igniter. I would not use that wire, but if you do, solder it on. I just used some more of my wire. Both of these wires you just soldered on should be about a foot long. DO NOT attach the wires to the screws yet! Moving on, get your two 3/4" couplings and glue them together to make a long one. This is to hold the igniter. You dont have to glue them together but its nicer if you do. OK set that aside.
Take your door pull and measure where it will be on the gun. Mark it off and get out your dremel tool. Grind the location down so it's flat. If you have to screw the handle directly onto the 3" pipe, get a different handle. One side should rest on the coupling and the other on the reducing coupling. That way youre grinding down a really thick part, and not your 3" pipe which is potentially hazardous. Before you screw it on, mark where the holes will go and drill a hole (to prevent cracking). Screw it on using the included screws and there you go. Next wrap the saudered wire on the igniter with electrical tape and feed the igniter and wires through the coupling. - IGNITER.jpg (3.36 KiB) Viewed 7165 times
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- You could cement the igniter to the couplings, but then if something goes wrong, you cant get to it. So I just taped it. now ducktape the coupling (with igniter inside) onto the handle. Next you can solder the other end of the wires to the screws. Polarity doesnt matter. I also put some electrical tape over the screw heads on the outside.
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- Now of course you could just not deal with the handle, and you could just mount the igniter directly in the pipe, but the problem is, if the seal isnt strong enough, when you push the ignter, it'll fly out ouf the barrel. and probably take your finger with it.
Now for saftey reasons, I reccomend you wrap the 3" pipe (just the exposed pipe, not the couplings) in a couple layers of ducktape. Supposedly this will deter pieces of pipe from flying into you should something go horribly wrong. I for one doubt that this would help much at all, But since promotion of safety is cool I still put it on here.
Last edited by PCGUY on Sun Jul 23, 2006 1:54 pm, edited 1 time in total.
Yes, I am the guy that owns & operates SpudFiles (along with our extremely helpful moderators).
Wow Nice job on apllying primer, Give it a paint job, lol<img src="http://www.spudfiles.com/uploader/uploa ... 980630.gif">
My website www.freewebs.com/potato_cannon/
My website www.freewebs.com/potato_cannon/
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jessemiller612
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- Joined: Fri Dec 02, 2005 8:09 pm
if u look at the top picture he has given it a paint job he painted it black!!!
cool did u think of the handleset up
