Instructables
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

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 4: 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.
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.
pocholox84 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)  pocholox84 years ago
The cap rarely comes off, but when it does it hurts like heck! Good ideas, though. Never thought of them.