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For my first instructable, I give you the Bic Pen Cannon!

Step 1: Preparing the Bottle

Materials:
Water Bottle (any kind will do)
Bic Ultra Round Stic Grip (most kinds of pens will work)
A tool to cut through the bottom of the bottle (drills work best)
Aerosol Hairspray
Safety Lighter


To prepare the bottle, all you need to do is drill a hole through the center of the bottlecap (this may need to be adjusted in the next step) and then drill out a circle in the bottom of the bottle so you can fit a safety lighter head through it very snugly. It's very important that the lighter fits snugly, if it doesn't, there's the possibility of fire shooting out the back and burning you.

Step 2: Preparing the Barrel

Take apart the Bic pen, slide off the rubber grip, and there will be an almost arrow-shaped piece of plastic holding the ink well and pen tip. Slide that piece of plastic off while being careful not to pull the pen tip out of the ink well, making a very annoying mess, and then slide that piece through the hole in the bottle cap pointy side holding the barrel in from the inside of the cap. You may need to adjust the size of the hole if you didn't drill precisely. Then screw the bottle cap back onto the botle and you're ready to fire!

Step 3: Firing!

Unscrew the bottle cap and spray some hairspray into the bottle. Screw the cap back on, put the ink well part of the pen into the plastic barrel and push to make sure it's secure. Stick a safety lighter through the back and fire away. It should make a pretty cool high-pitched rocket-like noise and the pen cap should shoot out about 30-50 feet depending on how well your cannon is built, how much hairspray you used, etc.
I'll try to put a video of this thing firing on here soon.
try using WD-40, or starter fluid
ok people if you dont got the hair thing get some axe lol
could you use mosquito spray
I don't know, my suggestion would be to make one and give it a try. As long as it's flammable, it should work. And there's always other things lying around at home that could work too.
hey nice one! I'll go and try it immediately!
does anyone know what the original name for bic pens was going to be?
What you could do is cut the end of it so you have a hollow pen.Stick That through a hole in the cap.Then you can fire air soft BBS from it.
That's an awesome idea, I never thought of that. I'm going to have to give that a try.
When I did it the projectile hit the ceiling.
are you supposed to hold the bottle because i did something like this and the plastic melted and i got burned
Yes, you're supposed to hold it, but with this, the fire usually goes out right after it shoots but if the bottle still feels hot, shake it and the flame should go out without damaging the bottle.
this i s pretty cool, ecxept for you made a cheap knock-off of the original mini spud gun
Not quite, this isn't based on any other instructable, it's just a fun little weekend project I wanted to make people aware of.

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