Picture of The Original Potato Cannon
How to build the original hairspray powered potato cannon. Takes about an hour and $30. Shoots potatoes over 100 yards!!!

Step 1: The Materials

Picture of The Materials
Building Materials
-5 feet of 1.5" ABS (DWV) pipe
-2 feet of 3" ABS pipe
-A 3" to 1.5" reducer
-A 3" threaded adapter
-A 3" end cap
-A BBQ ignitor (+1 Screw)
-ABS cement

-Cheap aerosol hairspray
-Potatoes or similar legumes

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ng_231 year ago
Also what will any type if BBQ igniter work
Jaynoski ng_2320 hours ago
katherley1 year ago
awesome must try with my kid
Firing your kids out of it
1liular8 days ago

Can you cut the 1.5" pipe to 3 feet ,instead of 5?

Does it aim ? Can you consistently fire into a target range ?

sandstorm7863 months ago

where should i get the bbq igniter from

It really doesn't matter as long as it is the style with the long barrel and a trigger

There are these places called "stores". You have to go outside though to get to them.

JbirdH made it!1 month ago
pvc works fine as well
jone33 months ago
Try using propane lmao but watch yourself be careful dosent take much
eldon.rv7 months ago

The sizes I see on this instructable are reasonable. Bear in mind that a potato is probably self-lubing, that is, they have a bit of juice to help them slide out of the barrel nicely. I would be extremely wary of shooting things that have no lube, like can goods, baseballs, etc. Why? Because if you get one of these 'stuck' (if you get a SQUIB) The pressures from some propellants can rise wayyy too much while the thing is trying to shove your item downrange. While the burst pressure on plastic might not be very high, it's high enough to create shards that are sharp if the thing blows up.

Geez. I sound like your parent. ggg.

I agree. A buddy and i had a PVC launcher that launched soup cans a hundred yards or so and it exploded cause of lack of lubricant. The seal was two tight

Can i use a fevicol instead of ABS?

LM139237 months ago

will this shoot a tennis ball?

I would like to make one of these, except mine will launch marshmallows, instead of potatos. do you know if this is possible by just getting a 5 feet of 1" ABS (DWV) pipe instead of a 5 feet of 1.5" ABS (DWV) pipe?

*and a A 3" to 1" reducer instead of a A 3" to 1.5" reducer

what work better than an ignitor is a coleman lanturn sparker with flint

shawkins34 years ago
some one tell me what measurements this was taken in ?

inches I think

this is all imperial aka inches and such. the quote mark is the symbol for inch ( ' = foot, " = inch)
ng_231 year ago
I'm not to sure about the igniter part, could someone clarify

my stepdad made one. he to a thick wooden dowel and drilled a whole about where your pointing finger goes. he drill all the way through and put in a barbeque grill ignitor. He stapled the wires up the back of the handle and inserted them into the firing chamber. Then use glue or epoxy to seal the hole. oh, and make sure they are close enough to arc. hope this helps

what can you shoot out of it?

it's called a potato cannon...it shoots potatoes

the simplicity of that burn was lovely

jdmolson1 year ago

Great instructable ... my buddy and I will be making one each over the Memorial day weekend ... I may even try to find some schedule 80 transparent PVC ... anyone tried that?

Jwr70781 year ago

I saw on a show that they used duck tape and it worked. Should I do that to save time or stick with the glue stuff?

Well the cement will last longer and also the duck tape may get blown off during the process soo.... yeah take a guess

Kitboga2 years ago
Pretty cool! I've been getting into building fireworks myself. Wrote some articles about it. Do you like fireworks or cannons better ?
Garrigus2 years ago
Use starter fluid. Unlike hairspray, which is sticky, starter fluid burns clean. The hairspray will gum up the threads on the end cap. Make sure you seal all the screw holes with jb weld.
ebaneser2 years ago
Hacksaws are used for metal pipes but work just as well on ABS
cbadger2 years ago
Super easy to make, loads of fun, quick construction. Great Instructable. I modified your instructions slightly. Instead of a grill spark igniter, I used a gas lamp spark spin wheel. A lot more low tech, but works like a charm. The advantage to your igniter, looks awesome when you shoot it! The advantage to mine, low cost.
jarredondo2 years ago
Sorry, but a potatoe is a Tuber not a legume. Beans and the like are legumes. Thanks,
taudet3 years ago
If i do this with a blow torch lighter do you still think it will work?
harry456 taudet2 years ago
yeh, probaly melt the pipe though
Does any sort of aerosol work or just hairspray?
yeh use any flammable liqiud< e.g. petrol,haha, deodrant
harry4562 years ago
my end cap blows off, what can i do?
this is great for making a m18 recoilles rifle replica that even shoots! :D potatoes!
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