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Potato Cannon Shooting and Instructions How Build Your Own Gun

2012-09-20
I didn't get it launching I don't even know where that went don't you do less hairspray harassing mr. hit again we need an endcap you need the piece that the end cap screws into you need a footlong combustion chamber you have to have the piece that connects the chamber to the barrel and then my barrel is going to be you know three three and a half feet long haven't quite cut it to size you get the abs cement and a barbecue igniter the reason I'm using the ABS is because it's stronger than PVC when PVC breaks it kind of shatters into lots of different pieces abs kind of it doesn't shatter so works better for the potato gun you also need two screws that we're gonna drill in between this this is a four foot no sorry four inch diameter pipe so make sure your screws are at least two and a half inches so they kind of cross over each other and they're inside of that it also helps to have some little screws drilled inside of here so that when you're pushing things down in the barrel it doesn't go all the way through into the chamber so you stick just like a little screw and so it sticks out probably about half way through in there and that just stops anything from entering the chamber itself somebody right now is I'm gonna take some sandpaper and just kind of rough up the insides from where the glue is gonna go just so it has a better sticking power I'm taking this glue right here and I'm covering from the outside of this and the inside of that I'm doing both surface areas then as I put it in I kind of twist it I'm into place so I make sure did the glue on every single part of it okay all the parts are glued together I let it sit and dry for a little bit before we put the screws in through the combustion chamber so I have the barbecue uniter I connected the wires to the bottom and the side and so now every time I click this it'll snap across there we're gonna attach those to the screws on the side of the gun itself that side and that side and then this spark will be transferred across the screws instead so I have the wires wrapped around the screw I also put electrical tape all over the igniter as well so I don't get zapped and it holds the connections in place as far as the screws go there to screw it in over the top just like that they're pretty close together this kind of spark there you can also see that other screw I'm down there where the barrel changes to the 2-inch that's what's gonna keep the you know whatever you're launching the potato of the golf ball whatever they keep it from coming inside the combustion chamber there you have it a potato gun potato launch short that's short
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