Potato Cannon (with Interchangeable Barrels)

Introduction: Potato Cannon (with Interchangeable Barrels)

About: i like fire and explosions thats about it

your going to make a potato gun and that has inherent dangers so don't be a retard and shoot this at anyone/ any animal/ anything you want to live this is very powerful

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Step 1: Parts

ok here is what you need

pvc primer
pvc cement
teflon tape
5' of 2" pvc
2' of 1 1/2" pvc
2' of 1" pvc
a 3/4 inch valve with threaded insides
the appropriate screw in thing (they are grey see the pic) two of them
2" to 3/4" coupling and threaded bushing X2 (only this one and thats 2 couplings and 2 bushings)
1 1/2" to 3/4" coupling and threaded bushing
1" to 3/4" coupling and threaded bushing
2 inch endcap
schrader valve (bike tire valve) ((not pictured))
basic tools like scissors, a pvc saw (i used a hacksaw)

Total cost: $40.89

**IMPORTANT** all the bushings are the measurement ( say 2") to 3/4 thread

Step 2: Assembling the Barrels

just look at the pics BUT first cut your 5' piece into 2' and 3' pieces (if you have a bell end it goes on the short segment, the barrel)

Step 3: The Body

take the 3' piece of 2" pvc, the other 2" coupling and bushing, the valve and the 2 grey thingies (dont forget teflon tapes and primer/glue)

Step 4: Valve and Endcap

just get your schrader valve and endcap (oh and drill with appropriate bit)

Step 5: Ending

wait 24 hrs to test it, be safe and have fun

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    8 Discussions


    11 years ago on Introduction

    I HATE BALL VALVES!!! Sorry, please use something better, on my current gun, I took the valve off of an old air duster, it works great!


    Reply 10 years ago on Introduction

    really? i love ball valves they are CHEAP and durable plus if you have any muscle at all can open VERY quickly. not as fast as a sprinkler valve but wtv


    Reply 10 years ago on Introduction

    ug, sorry, but they are 2 bulky, ugly, and they are hard to open. They also suck as triggers. I confess, i did use a ballvalve on my first gun, but i only use airdusters and sprinkler valves now >.<


    Reply 10 years ago on Introduction

    well im to lazy to mod a sprinkler valva but ill try for my next one


    Reply 10 years ago on Introduction

    Great! I would love to see that when your done!