Miguel Rojas: Nice. One question, if this type of cannon was built to about 2x in size,
will it have increased power, enough to clear a range of 30-40 yards if
loaded with, let's say, yellow squash?
Bryan Ropar: Did you ever think about mounting the cannon (or bigger one) on the bottom
of a go cart and putting a long piston in it? So that way you can casually
back up agents a wall or solid object, open the value, and take off like a
shot leaving the piston behind and everyone wondering how you did that.
Crossbow Payload!: I dislike the valve firing mechanism, is there any other way/part to hold
then release the air?
Nintendo101maniac: Dang! Definitely would hate to get hit by one! I have a question though:If
you'd put 2 blades that have been put together to form a + shape (removable
of course, for loading, and so you're not stuck with only that option) at
the end of the barrel, would it make it a spread-shot cannon?
bill gaits: can you give list of material you use
cdrobson: Love the thought that went into the design. Really cool. Where'd you come
up with the coaxial design?
Dean Mavis: At 6:09 it looks different than when you glued the rubber washer in.
eric chen: If someone is going to put something small like airsoft pellets would you
need something like a wadding?
stargazer3593: Awesome! Imma use dis for Riots! (Not really but I picture some one
actually using it for that purpose.)
antonio balladares: @NightHawkInLight
I made your Coaxial Piston Cannon, but i'm having a lot of air leaking
through the 2 inch barrel. Can you help me out.
TheAnnoyingBoss: im going to give this to my mom when she complains about making mashed
sciencefair: We have just built this and felt that we followed the directions
meticulously except we could not find the metal end caps for the piston. We
have used a hockey puck, put a lip on it and wrapped it in foil tape. We
are not getting a very good seal and hence it is not firing. Any thought a
on ideal weigh of the piston or ideal "lip size"
Jack Longlade: @NightHawkInLight
I am thinking of creating this cannon and was wondering a few things that
would be really helpful if you could answer. First is about the piston,
have you build one with a hockey as the piston instead and how well did
that work? Next question is about how much will it cost to create this type
of cannon? I realize that you have the supply list posted but before I jump
into this project it would be helpful i had a price range. It would truly
help me if you could reply as soon as possible and thank you for the video.
Rajon Ali: has anybody done this? How much did it cost?
Sith ari: would heavier ammo work with this or are potatos the limit?
Brian Gross: Hi could you also modify the cannon so that it has a ½ inch barrel for for
example blowgun darts?
Neonninja1415: Try putting a Nerf Vortex pocket football in that tater cannon. I'm making
a launcher for airsoft milsim and I think this would work great with it.
Darius Carroll: a friggin 3 inch long PVC pipe nipple, a whole lot of sex refrences jesus
Arthur Hunt: AWESOME TOY. BET I CAN TRAIN MY CAT TO STAY OFF THE KITCHEN TABLE. .Not
Matthew Wessels: could i charge this to 100psi
ipanase megison: wow complex
chris platt: Is there anything that can substitute the gas vent tee caps? I cant find
Juan Kmaney: Hi Bud!
Thanks for sharing with us.
quick dumb question, I'm about to start building one of those, but I want
use it for "bait caster" instead, so I know that the barrel has to be
longer, and I like to know if I have to make the whole setup longer or just
WINSTON SMITH: More trouble than hair spray but better!
D Smith: Will you see how fast the ammo goes
Goldie Neko: would this work if you put confetti in it instead of potato?
DeadEye MC: what would happen at 100-200 psi
Blastin22turnips: Would this be able to be modified so it could shoot a high power blast of
Darius Carroll: srry heard that wrong
Idabus: Could u shoot a little foam nerf foot ball with it
LeskiStation: Amazing tutorial. Very well done
Madison Harper: I see a lot of room for improvement on this design... I'll have to build
it. Probably a solenoid dump valve for your rear end, electronic trigger,
hoseclamps, arm brace, etc.
Mike Newell: Your air cannon is cool. I just made a big air cannon
Bob R: I just spent hours completing this cannon. I followed all the directions
and specs as best I could. I have run into a huge problem..... Connected my
bike pump, pumped it up like 8 times.... Turned the valve.....
And all the air fired from the back of the valve?????
Total opposite direction????
Now, this was all done with an empty chamber.
Does it matter if I load the chamber???
I guess I will go get some potatoes...
Gintoki Azuma: i have a question
Will it put a hole in someone stomach if they get hit ?
Don Green: Made one but when dry firing all the air escapes through the ball valve not
the barrel. I've played with wrapping the piston and not wrapping it but
nothing seems to work. With no tape on the piston I can hear it move as I
tilt the cannon back and forth. Any suggestions to get it to work?
jean paul Saliba: i need help the its not shooting followed instructions aig goes to the
outer barrel but not inner barrel
Diane Hunter: Can you fire something heaver than a potato in it?
BlueCro64: hey great video. I managed to solve the air leak problem with the rubber
seal. Used a cell phone rubber sticky pad for the car, i added dust to make
the rubber not stick so much, the soft rubber works good. The problem im
still having is the piston does not open when the ball valve is released,
it drops down after the pressure is released. i added a couple more lairs
of foil tape and the piston is tighter but still have the same problem.
Should i keep adding foil lairs or am i overlooking something? Appreciate
Mad and Major Gaming: I need some help. I live in America and ive been on almost every hardware
store website I can think of and even after multiple google searches I
havnt been able to find a pressure rated 3" to 1-1/2" reducer anywhere. Can
someone help me out? Preferably someplace I can pick it up at and not have
to order. thx.
Jim McFarland: Would a smaller diameter barrel work? I want to shoot golfballs out of it
or would I have to wrap them in something if a smaller barrel wouldn't work
pippaknuckle: Waste of good potatoes!
BurritoBandito: Can I add this to the foam noodle rocket launcher?
Abraham Monroy: Could i have one Ford 5 bucks??
KraZer: Can anyone tell me how much this would cost? Need it for a 9th grade
kenvadnais: I'm having a problem with two parts:
1) grinding off just the lip of the T-Cap evenly
2) after pouring/mixing the epoxy into the 1st T-Cap, I can't get the 2nd
T-Cap to sit evenly. Either there's too much epoxy or not enough. Either
way, the 2nd T-cap doesn't seem to set even.
Do you have any advice?
Morgan Smith: What could I use for as a substitute for the galvinized steel vent tee
Steve Nottingham: That will give you a nasty bruise. Too funny. You have to much time on your
Kathy Freeland: Wow, why make something more complicated than it is in reality?
Potato guns are suppose to be cheap, fun, and fail proof. Either way, the
pipe is only rated at 40 PSI, so why make a piston? Just load a piece of
pipe up with air and shoot it.
But that's my philosophy.
How to Make a Powerful Coaxial Piston Cannon from Hardware Store Parts4.9
out of 5