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PMCTDRS
Posted: Tue Jul 31, 2007 7:22 pm
by Darkside 6ix
Pneumatic Marble Cannon That Destroys Random Stuff
Specs from barrel to chamber: 2 1/2 feet of 1/2 sch 40, 3/4x1/4 reducer, 3/4 watermaster sprinkler valve, 1/4 nipple, 1/4 blowgun, 3/4 male fitting, 1x3/4 reducer, 1 1/2x1 reducer, 1 foot of 1 1/2 sch 40, 1 1/2 endcap, schrader valve and psi gauge.
whole cannon
cannon taken apart
cannon's chamber and valve assembally
damage pic #1
damage pic #2(notice how the threading of the bottle is in the cap)
ammo
hope you guys like it
Posted: Tue Jul 31, 2007 7:31 pm
by spudthug
take the fitting off of the blowgun it will increase performance. but anyway nice gun!!
this looks alot like my first gun. i like the simplicity in sprinkler valve guns
wee first post..
btw if anyone has the FX channel you should turn it to it..one of the best ever movies are one...the day after tomorrow..
Posted: Tue Jul 31, 2007 8:06 pm
by Darkside 6ix
hey i tried to take that fitting off but its like welded on there
thanks for the comment
Posted: Tue Jul 31, 2007 8:19 pm
by singularity
it should definitely come off, you might need some wrenches though. i am pretty sure theres an o-ring on it
Posted: Tue Jul 31, 2007 8:25 pm
by Fnord
Me likes.
If you can make a custom hangrip out of bondo or something, it would be uber-1337.
You might consider sawing the fitting off of the blowgun, then drilling it out. You'll probably notice the difference in preformance.
btw if anyone has the FX channel you should turn it to it..one of the best ever movies are one...the day after tomorrow..
I saw it twice. That was enough for me.
I'll stick with my eureka

Posted: Tue Jul 31, 2007 8:42 pm
by Darkside 6ix
aight thanks for the help... how would i saw it off... with a hack saw or a band saw?
Posted: Tue Jul 31, 2007 8:49 pm
by Fnord
A hack saw should work fine.
If you have any vice grips try that before you cut it. It might come loose.
Posted: Tue Jul 31, 2007 8:51 pm
by Darkside 6ix
ok well im guna try a wrench first and btw do you know what pipe size i need for a paintball
Posted: Tue Jul 31, 2007 9:12 pm
by BigJon
I think 3/4" sch 40 is good for paintballs and, correct me if i'm wrong, but i think so is 1/2" sdr21?
Posted: Tue Jul 31, 2007 10:49 pm
by rednecktatertosser
actually 3/4" CPVC is the best for paintball in my oppinion.
Posted: Tue Jul 31, 2007 10:56 pm
by jackssmirkingrevenge
slightly bigger chamber would do good for power, methinks, but nice effort.
Posted: Tue Jul 31, 2007 11:13 pm
by origin unknown
Nice gun. I like the tiny pressure gauge. Is sch80 3/4" pvc a good barrel for paintballs?
Posted: Tue Jul 31, 2007 11:21 pm
by iPaintball
Very nice gun! I too like the mini gauge. Keep up the good work!
No, 3/4" Sch 40 fits paintballs horribly. 3/4" Sch 80 works fine, but I would reccomend 3/4" CPVC because it fits paintballs perfectly, and I'm not sure about 1/2" SDR 21.
Posted: Tue Jul 31, 2007 11:35 pm
by noname
Best fit for paintballs:
3/4" Sch 120>1/2" SDR 13.5>3/4" CPVC>3/4" Sch 80 PVC>3/4" Sch 40 PVC
Nice gun, a good basic one, but still strong enough to have fun with. Good job!
Posted: Tue Jul 31, 2007 11:45 pm
by spud yeti
Good job on the gun, I like it. How high does that mini gauge go up to?