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small but deadly

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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small but deadly

Unread postAuthor: ckman » Tue Dec 16, 2008 7:55 pm

ok here is my new bb gun

chamber: 3/4 inch sch 80 pvc
barrel:2 feet of 1/4 brake line also 3 feet of 5/16 brake line
valve:1/4 ball valve
fill valve: screw in schrader
This is a small, but powerful little plinkler. It can shoot straight through a steel soup can from about 25 feethttp://www.youtube.com/watch?v=wKGo ... annel_page
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Last edited by ckman on Thu Dec 18, 2008 9:08 pm, edited 4 times in total.
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Unread postAuthor: VH_man » Tue Dec 16, 2008 7:57 pm

I see you gave up on your coax....

Looks pretty good. Take out the Zip ties and it would be cleaner in my opinion, but otherwise pretty cool.

Improvement from the blowgun... lol.

and nice eyes in the first pic.....
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Unread postAuthor: twizi » Tue Dec 16, 2008 7:58 pm

cool little bb gun u should add a qev and tighter fiting barrel and copper tank that would be awsome :twisted: :twisted:
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Unread postAuthor: FordGtMan » Tue Dec 16, 2008 8:02 pm

Good improvement. I would suggest a smaller chamber because with that slow valve, the bb would be gone way before that chamber is close to being empty. What pressure do you use?
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Unread postAuthor: jrrdw » Tue Dec 16, 2008 8:02 pm

Damage pics! We demand damage pics. Or even better, a video clip of it doing the damage! :twisted: :D :lol:
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Unread postAuthor: starman » Tue Dec 16, 2008 8:07 pm

Well at least it's not Silent But De...... :lol: ...well you know...

Good progress ck! Keep pluggin' my man.
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Last edited by starman on Tue Dec 16, 2008 8:08 pm, edited 1 time in total.
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Unread postAuthor: cheeseboy » Tue Dec 16, 2008 8:08 pm

nice gun 2 things that can make it better though:

1. get a sprinkler or QEV valve and then use the ball valve eto pilot it, it'll only cost about $15 to do but will make a huge difference.

2. this is a more long term improvement, replace the pvc chamber with copper or brass because it looks like it has all brass fittings except for the chamber, doing this will allow it to handle much higher pressures, and has the added bonus of you being able too fill it using a co2 tire inflator, which can be bought from any bike store.

is that you in the photos? you look awfully young to be making these
(take it as a compliment)
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Unread postAuthor: FordGtMan » Tue Dec 16, 2008 8:10 pm

get a sprinkler or QEV valve and then use the ball valve eto pilot it, it'll only cost about $15 to do but will make a huge difference.


I understand a 1/4 inch qev, but a 3/4 sprinkler is way overkill.
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Unread postAuthor: th3p0p0 » Tue Dec 16, 2008 11:16 pm

overkill is good in this hobby my friend :wink:
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Unread postAuthor: Gippeto » Wed Dec 17, 2008 12:48 am

The eyes! :shock: The eyes! :shock:

You crack me up. :lol:

Well done CK, glad you got it finished. :)
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Unread postAuthor: Xxplosive42o » Wed Dec 17, 2008 1:50 am

Pretty cool gun you got there. Definitely get yourself a QEV! You could just use one of those sprinkler valves. Finally, get rid of those zip ties so you can work on some aesthetic improvements. Keep building man! Cheers 8)

And for the first picture? You creeped me out; therefore, I must return the favor! muaha :twisted:

*removed picture* I know I know... I went far on that one. But still, it was funny.
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Last edited by Xxplosive42o on Wed Dec 17, 2008 2:42 am, edited 1 time in total.
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Unread postAuthor: starman » Wed Dec 17, 2008 2:17 am

Good heavens, I could have gone all year without that...the creep out factor went up by a 10x factor.... :shock: Might want to keep in mind we have some youngish eyes around here.
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Unread postAuthor: ckman » Wed Dec 17, 2008 7:23 pm

na its fine i've seen worse
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Unread postAuthor: FordGtMan » Thu Dec 18, 2008 12:45 am

overkill is good in this hobby my friend


Probably overkill until performance is lost. Didn't someone here prove that fact?

Wow, :shock: :shock: I dont think i needed that first pic. xxplosive, i didn't see your pic, but how could it be scarier than that crap!!
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Unread postAuthor: Xxplosive42o » Thu Dec 18, 2008 1:02 am

Um, you really don't want to. Probably the most disturbing image of hairy French man wearing a pink bikini you'll ever see. I suppose God spared your eyes. :wink:
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