Port and polish

**offroadfury6** · 09-26-2008

Originally Posted by Bio248

you do your own! :P

lmao

**Smokin2000gtp** · 09-26-2008

Originally Posted by Quicklynx

Personally I used J-B Weld epoxy when I made a Potato Launcher out of PVC piping. I used a spark plug to ignite the fuel in the cannon. Well I J-B Welded the spark plug to the bottom opening of the cannon, metal to plastic, where we spray the hairspray into. I tried pulling it off and the thing wouldn't budge. It's stuck on there for good.

Hmm interesting. Curious to know what you use to trigger the spark plug. My potato cannon has just got an old school flint, and a spark plug sounds like a good upgrade.

**jacobmh27** · 09-27-2008

I was thinking of doing this soon too

**Sabrewings** · 09-27-2008

Originally Posted by Smokin2000gtp

Hmm interesting. Curious to know what you use to trigger the spark plug. My potato cannon has just got an old school flint, and a spark plug sounds like a good upgrade.

I'd personally use a capacitor setup.

**Quicklynx** · 09-27-2008

Originally Posted by Smokin2000gtp

Hmm interesting. Curious to know what you use to trigger the spark plug. My potato cannon has just got an old school flint, and a spark plug sounds like a good upgrade.

We used a Push Button Propane Grill Ignitor, and cut a piece of hanger and curved it to the top of the ignitor, so it basically was a "spark" plug. Not an automobile spark plug, sorry didn't know where my mind was, haha. It worked really well. Instead of holding the cannon we made the barrel longer for max distance. The button was on the bottom so we would just slam it onto the ground to fire it. We are actually planning on firing it off a few times before the Cowgirls - REDSKINS!!!! game tomorrow! I'll see if someone can take some video and youtube it.

WARNING: Before anyone plans on making a potato launcher for max distance, and I highly reccomend everyone does because they are very fun and enertaining, please do some research first as PVC piping, and other materials, have their PSI limits. Some cannons have shattered and injured people because they made the fuel sump way too big for what the materials could handle. We built ours after drawing out plans and doing much reasearch on materials we would use.

Better safe than sorry!