my new potato gun

[Ran4it2 10+ year member]

i went to home depot today and got all the stuff. i shot it only twice tonight b.c my dad was getting mad but yea this thing is badass no joke. barrel is like 3'6" long and the whole thing is about 5'8" tall. it wasnt too hard to make but its a killer how u have to buy full 10' pieces of pipe at HD. it came to about $44 after tax and i still have a shit load of pipe left over to make another two or just one with a really long barrel i dont know yet. anyways here are the pics

a question for people who have used some before:

what is a good fuel besides hairspray? i heard red guard was good but they dont make them flammable anymore any other ideas? Hairspray is messy and sticky when it drys

Click to read more...

 

[Supergumby5000 5,000+ posts]

me and my buddies built pressure powered potato guns with big ol air chambers on em.they are a lot bigger tho. Pretty much two potato guns strapped side by side, one the barrel and one the chamber, and a pressure release valve on the end. It was pretty wicked tho. Could shoot a golf ball about 500 yards

 

[sqhertz 5,000+ posts]

shit. nice work.

i read the title and thought of my friends gun with a grill starter as teh spark and pvc glue all over lol.

 

[Pitchblack98 10+ year member]

spray some starter fluid in that bad boy... I would wrap the combustion changer is a bunch of duct tape before using it though...

I in no way am responsible if you hurt yourself. lol... Starter fluid will launch a potato like none other though.

 

[azbass 5,000+ posts]

word,

you have girl hands

 

[Ran4it2 10+ year member]

lol girl hands?? im only 16 and i dont have hairy hands they are pretty scarred up tho all my knuckles are ****ed up

 

[grassroots 10+ year member]

buy a couple bottles of MAPP gas... works GREAT... just make sure to air out the chamber after each shot so there plenty of o2 to mix with the gas...

edit: i personally would have made the combustion chamber bigger. we've always used 5in pipe but that should still work fine... and i'd wrap it with some layers of duct tape just in case... i've heard of them blowing up before, but i've never seen it happen, and i've shot them thousands of times...

 

[RAINMAKA 10+ year member]

we need vids

 

[Ran4it2 10+ year member]

im gonna get some vids tommorrow i need to buy some new fuel and aten pound bag of potatoes

 

[95_venger 10+ year member]

word,
you have girl hands

i didnt even notice that untill i read this but it made me lol!!

 

[AllStar1500bd 5,000+ posts]

You'll shoot your eye out //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[9512ds 5,000+ posts]

i always used white rain hairspray from walmart

 

[BASSMEKANIK 10+ year member]

B-12 is going to work best... just be careful because it will make a pretty good boom...

 

[mattf 5,000+ posts]

You'll shoot your eye out //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

That would hurt. Alot. //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[creyc 10+ year member]

Thats ABS plastic or black painted PVC?

If it's ABS, good choice. I don't think duct tape is entirely necessary, ABS pipe is used in firework mortar launch tubes because it fails in a less dangerous manner than PVC under pressure. PVC blows up sending shards everywhere, think shrapnel.

But still be very careful! Hairspray works pretty well, but remember when you're doing it that the quantity makes all the difference. You need that perfect mixture of fuel/air.