Pneumatic Cannon 1/2 inch

This Cannon is my 2nd to instructables but the very best out of my other cannons. (in lethality, distance, power, and odd-looking. The also has the best advantage of being 1/2 barrel diameter, meaning it fires Paper darts, NERF DARTS, double A batteries, firecrackers of the right size, airsoft BB's, and anything else that you can find.

it's a lot bigger than it appears

BE CAREFUL!
the double A batteries are not to be shot at anyone
.
so lower the pressure if you are going to shoot it at someone. and not at their face

Step 1 Materials

Materials:

1-1 inch PVC pipe (8 feet standard I believe)
2-1 inch end caps
1- tire replacement valve (auto parts store)
2- 1 inch, 45 degree angled elbows
1- 1 inch T valve
1- 1 inch elbow
1- 1 inch non threaded/threaded 1/2 inch adapter (elbow)
1- 1/2 inch threaded pipe (6-8 inches, depending on preference)
1- 1/2 inch threaded pipe (14 inches long, or how ever long you need your barrel
1- 1/2 inch threaded on both sides ball and socket valve

Other parts:
PVC Cement
PVC Primer
Hacksaw
Superglue
Silicone (optional for leaks)
Bike Pump W/ A GAUGE! (a compressor just doesn't work very well)
Tape Measure
Pen ( To mark cuts)
Drill

Comments

[Thelonelysandwitch]

make some darts from the tiki dart instructable pump the gun to max psi and shoot. I've heard that at 180 psi they can go quarter mile.

[yeolddingdong]

you  rock!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[Thelonelysandwitch]

oohhhhh yeah lol thanks

[pbpenguin5]

two problems with that, i like seeing out of both of my eyes. and those are made for a straw, where this barrel is around .50 caliber.

[Thelonelysandwitch]

just make big ones

[qballcat]

(removed by community request)

[Super_David]

(removed by author or community request)

[codongolev]

spammer ;)

[receiver545]

dude i made one of those! you think 40 psi stinks try being shoot by a paintball out of it at 145psi . ( i used 3/4 in pvc instead of 1/2 in.)'

[pbpenguin5]

lol nice

[tony48]

Could you please explain the valve assembly a little better for me

[receiver545]

dude its simple !!

[pbpenguin5]

the valve, barrel, and piece connecting the rest of the body or compression chamber is threaded, so they all screw into place and are surprisingly airtight if you do it right. i don't know if that answer's your question or not haha.