Paintball Cannon

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SpudStuff
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Tue May 02, 2006 10:14 pm

Theae are instructions to build a paintball cannon

Materials:
1x 36" 2 inch PVC sch 40
1x 36" long 3/4" Sch 80 Sprinkler riser
1x 2" cap sch 40
1x 2" coupling sch 40
1x 2" x 3/4" bushing sch 40
2x 2" elbows sch 40
1x short length of sch 40 3/4"
1x 3/4" male thread adapter
2x 1" male adapter
2x 1"slip x 3/4" thread bushing
1x Mod sprinkler valve (see other how to)
2x Teflon tape
1x common since

Tools (specilty)
1/4"NPT tap
1/2"NPT tap
PVC glue and primer

filling system coming later


START AT THE BOTTON OF THE POST
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Thread youre barrel into the other adapter with teflon
Thread youre barrel into the other adapter with teflon
Now screw the valve onto the cannon using even more teflon
Now screw the valve onto the cannon using even more teflon
Using lots of teflon, thread them into the sprinkler valve
Using lots of teflon, thread them into the sprinkler valve
make the adapters by gluing the 3/4&amp;quot;x1&amp;quot; bushings into the 1&amp;quot; male adapters<br />careful not to get glue on the threads<br /><br />Make two of these
make the adapters by gluing the 3/4&quot;x1&quot; bushings into the 1&quot; male adapters
careful not to get glue on the threads

Make two of these
Youre cannon should now look like this.
Youre cannon should now look like this.
Now apply glue and line up youre marks
Now apply glue and line up youre marks
Glue a elbow onto the end of that pipe. with out glue lightly plue lightly push it onto the nipple out of the other elbow and mark the position with a sharpie.
Glue a elbow onto the end of that pipe. with out glue lightly plue lightly push it onto the nipple out of the other elbow and mark the position with a sharpie.
Using youre 1/2 inch tap, tap threads into the hole. go in one turn and out 1.4 turn then repeat
Using youre 1/2 inch tap, tap threads into the hole. go in one turn and out 1.4 turn then repeat
Drill a 5/8 inch hole into the center of the cap
Drill a 5/8 inch hole into the center of the cap
Glue a cap onto the end of the 20&amp;quot; pipe
Glue a cap onto the end of the 20&quot; pipe
Glue the short piece of 2&amp;quot; into the elbow.
Glue the short piece of 2&quot; into the elbow.
Glue the elbow onto the end of the piece youre working on.
Glue the elbow onto the end of the piece youre working on.
Cut the pipe into pieces 12&amp;quot;, 20&amp;quot;, and 4&amp;quot; long.<br />glue the bushing into the coupling then the coupling onto the end of th 12&amp;quot; pipe.<br />Glue the short piece of 3/4&amp;quot; PVC into the bushing, then the 3/4&amp;quot; male adapter onto it
Cut the pipe into pieces 12&quot;, 20&quot;, and 4&quot; long.
glue the bushing into the coupling then the coupling onto the end of th 12&quot; pipe.
Glue the short piece of 3/4&quot; PVC into the bushing, then the 3/4&quot; male adapter onto it
lando250
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Mon Aug 21, 2006 1:17 pm

It looks almost exactly like my pb rifle but i used 1 1/2" for the stock. What kind of barrel did u use?
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huse_spud
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Mon Aug 21, 2006 9:18 pm

lando250 wrote:It looks almost exactly like my pb rifle but i used 1 1/2" for the stock. What kind of barrel did u use?
i bet thats 3/4 sch 80
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ProfessorAmadeus
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Mon Aug 21, 2006 9:34 pm

yeah thats what it looks like. You shoul use 3/4 cpvc for the barrel though because its the best fit.
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mark.f
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Tue Aug 22, 2006 5:26 am

1x 36" long 3/4" Sch 80 Sprinkler riser
Deee da dee!!!!!!!
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Flinchy
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Tue Aug 22, 2006 6:24 am

nice job with the basic over under design. the only flaw i see is that it would take time to reload this sucker. an added breech would be really cool.

-Flinch
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M3NT4L
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Tue Aug 22, 2006 4:45 pm

:D I like this gun. But i have a remark, are you filling that up to 60+ psi each paintball shot?.... because thats reallllly anoying. I have one aswell but i rarely use that barrel because paintballs cause no damage. And at the price making a canon like this one, arent you better off buying a talon.
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mark.f
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Tue Aug 22, 2006 4:59 pm

<offtopic>
I bought a Spyder MR I yesterday... :evil:
</offtopic>

But where's the fun in that Mental???
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MrCrowley
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Tue Aug 22, 2006 5:11 pm

in New Zealand i can only find 6mm PBs and .68 caliber PBs which is 17mm, i need a barrel for a PB rifle im builing but i cant find 6mm pipe and they only stock 15mm or 20mm pipe where a .68 caliber is 17mm,
Can anyone help me?will a 20mm barrel be fine for .68 caliber PBs?
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Velocity
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Tue Aug 22, 2006 5:16 pm

actually, 3/4" SCH 120 PVC pipe is the best fit for paintballs, hands down; good luck finding it however
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ProfessorAmadeus
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Tue Aug 22, 2006 5:19 pm

with lots of wadding but thats no fun. I really hate that other countrys cant get stuff to make their guns. Think of all the other people that would have them and all the new ideas they would contribute.
Insomniac wrote:Hey why am I a goose???? Why not somthing a little more awe inspireing, like an eagle or something? LOL
SOO CUTE!! OMG!! I COULD JUST LICK YOU!!
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MrCrowley
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Tue Aug 22, 2006 9:06 pm

yeah like me :D rmich you said 3/4" is the best fit, for what sized paintball?do you think i could use a copper barrel with everything else pvc?
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longshot1068
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Sat Sep 02, 2006 2:19 pm

.68 cal works out be around 11/16ths of inch I believe , I cant find any of that super heavy schedule pipe anywhere near where I live. I want a piece so that I can make a horizontal loader for my tippy 98C. For a loading tube 3/4 inch will work fine but for a barrel it is a bit sloppy unless you can find some of that 120 schedule they mentioned.
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rna_duelers
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Sun Sep 03, 2006 6:07 am

I found a really nice PB barrel in Bunnings the other day,it is 3/4 black abs pipe in the sprinkler section and it comes in meter threaded section(threaded each end NPT thread) i got a hold of some PB's the first time i has ever seen or felt them and i had trouble finding a good fitting pvc barrel so i used this stuff its not pressure rated or anything but it works great and it only going to be exposed to shot periods of a depleating pressure source.
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MackMeUp
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Wed Jan 10, 2007 7:45 pm

does anybody know where a good store to buy PVC pipes is (not online please)?
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