6mm Cannon

This is a 6mm mini-cannon made out of an old airsoft gun barrel. The tissue is used as a wadding to make a good seal for the expanding gases which allows for higher projectile velocities. The metal ram-rod is an old wire coat hanger, it allows you to ram the wadding into the barrel as well as clear the leftover firecracker debris. The pipe cleaner is to ensure a clean barrel for the next shot - maintaining a clean barrel is a good thing to do. This shoots airsoft bbs, or anything 6mm in diameter.

Explanation for the picture with the cans: It went through four cans with no sign of "stopping". I could test it with more cans however I fear that with added cans increase the chance of the bb diverging from its original trajectory.

Since I made this instructable after building it I will do my best to explain how to build one yourself.

Step 1 Materials

The first thing you need to do is gather the required materials.

• Airsoft barrel or some other metal tube. (Must not have thin walls!)
• Metal piece (The piece I had was cylindrical at the base and a round ball at the top with a hole through the entire piece)
• Small blocks of wood
• Files
• Drill and bits
• Band saw
• Hammer
• Plastic staples or some similar bracket
• Epoxy or high-strength glue (JB weld perhaps?)
• Wire coat hanger
• Pipe cleaner (optional, but its a good idea to keep a clean barrel!)
• Firecrackers and ammunition
• Tissues

Comments

[spalding1028]

I got some great inspiration from this and it worked great! I used phantoms Hydro-crackers (TON of kick to em) and I closed the one end so it was just small enough to get the wick through it. I had it for about 2 months, and today I got the "great" idea to take apart one of their strobing ground blooms and pour all of the powder down the tube (after running a wick through the end) and I wanted to see what it would do. The few other smaller fireworks I took apart just shot flames out, so I figured it'd just shoot flames out of it... I'm sure it would've if I hadn't firmly packed the entire tube with the powder... Thankfully I decided to duck around a corner right after lighting it... the explosion was awesome. The first image is the finished project and the second two are the aftermath.

[theswordninja561]

wow ......... so powerful...............(tosses m 80's)

[kve23]

this thing is AMAZING i made one and it shot clear through a 4 foot snow bank

[Nicola Tesla]

looks nice i will make it soon!

[mossimo3]

Thanks, be safe though, this thing is mighty powerful!

[Nicola Tesla]

i tride it and it pretty good!

[mossimo3]

Cool! Do you have any pictures of it?

[Nicola Tesla]

sorry i made it a long time ago but it was a plastic tube rapped in duck tape