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Picture of How to make a mini-potato cannon

Have you ever wanted to build a potato gun but never had the time? Well, now you can! This mini potato gun will only take 10-20 minutes and will entertain you for hours. (This is my first instructable.)

 
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Step 1: Materials Needed

Picture of Materials Needed

Materials:

1. Mini screw drivers

2. Film canister

3.  Bic Longnose Lighter

4. Knife or drill

5. Papermate pen

6. A aerosol deodorant

7. Hot glue gun

8. Potato or BB's

9. Pliers

10. Thumbtacks (Not pictured)

11. Tape (Not pictured)
 

Step 2: Make a hole for the barrel

Picture of Make a hole for the barrel
In this step, you do exactly what the title says. Use your knife or drill to make a hole in the bottom of the film canister for the barrel. The film canister is your combustion chamber.

Step 3: Make the barrel

Picture of Make the barrel
Make the barrel part2.jpg
Use your pliers to pull out the ink cartridge out of the pen. Then, make a hole in the other side.

Step 4: Put the barrel and combustion chamber together

Picture of Put the barrel and combustion chamber together
Put the barrel in the hole you made in step 2. Then, hot glue and tape it together.

Step 5: Take apart the lighter

Picture of Take apart the lighter
Put the combustion chamber and barrel aside and get your lighter. Remove any screws you see.

Step 6: Find the sparker

Picture of Find the sparker
Find the little sparker thing and attach the thumbtacks to the ends of the wires.

Step 7: Last step: Finish it

Picture of Last step: Finish it
Stick the thumbtacks with the wires into the film canister a little ways apart. Secure the sparker and you're done!
Creepy Shamwow (author) 4 years ago
New account: Creepy Shamwow.
I have a new account and won't be updating anymore
fez_uk4 years ago
I made something similar about a year back and they are greta fun and suprisingly powerfull,
You can add other extras to it like breech to load bb's with a magazine. Fresh air injection with a bicycle pump so you don't have to open the back to release the burnt air.

I found using a bbq lighter type pen great for injecting fuel in and for the spark, Alot even have a slide lock so you even have a safety. :D

Heres a video I did of mine: http://www.youtube.com/watch?v=ruOeNkmYEds
Creepy Shamwow (author)  fez_uk4 years ago
You should make an IBLE on those things.
pocholox85 years ago
doesn't the cap of the film canister back fire? i suggest using a bottle like  colgate plax or a medicine bottle that has a screw on cap
Creepy Shamwow (author)  pocholox85 years ago
The cap rarely comes off, but when it does it hurts like heck! Good ideas, though. Never thought of them.