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new coaxial

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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new coaxial

Unread postAuthor: airheadnoob » Sun Nov 29, 2009 4:10 am

heres a new coaxial i made over 3 days
specs
7 bar
29" long
3/4 T
1/2 pieces
1/4 pieces
1 cm barrel inner diameter
im thinking of changing piston because if you listen to the video the piston doesn't sound right.

im going to make a stock for it

i have a fridge compressor. but still goes up to 11 bar.
the video was at 7 bar and it got lodged into the door, if the screws didn't come fly out side ways it would penetrate better,. when i increased the pressure the power increased dramatically.

i haven't done many shots at 11 bar. when it is at 9 bar and up, the screws ricochet and fly right back at you. there was one shot where it ricocheted and made a mark in gip wood

i really need sights on this gun and the camera i used was bad

heres the pics
Image
Image
Image
Image
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Image


[youtube]http://www.youtube.com/v/4FKh58RdCB4[/youtube]

(edit) can some one help me with the vid o.O its not working ( do you need the embed url
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Last edited by airheadnoob on Sun Nov 29, 2009 5:25 am, edited 1 time in total.

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Unread postAuthor: EvilFish » Sun Nov 29, 2009 4:26 am

if the screws didn't come flew side ways it would penetrate better, the times they stuck in the door they normally.


I'm guessing, you're from holland, right? :lol:

but seriously, thats a nice compact gun. I need to start using copper. what did you make the piston out of? it looks like glue a little bit.
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Unread postAuthor: qwerty » Sun Nov 29, 2009 4:29 am

Neat little shooter dude. :) take it to a higher pressure!
Oh, i know who you are. You're that digadogup guy, i commented on your vid saying that the piston opens to slow (my hot glue piston opens very slowly too.0
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Unread postAuthor: jackssmirkingrevenge » Sun Nov 29, 2009 4:32 am

You don't deserve the help for not cropping out your feet in the photos, but I'm in a charitable mood ;)

[youtube]http://www.youtube.com/watch?v=4FKh58RdCB4[/youtube]
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Unread postAuthor: airheadnoob » Sun Nov 29, 2009 5:19 am

XD qwerty didnt know that was you.

im not from Holland why would you think that, my bad English?. i posted it on a french website 1st and did a lazzy thing and reused the translation XD

im an Aussie

oh yes it is very easy to conceal you can hide it under your t-shirt
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Unread postAuthor: psycix » Sun Nov 29, 2009 7:32 am

EvilFish wrote:
if the screws didn't come flew side ways it would penetrate better, the times they stuck in the door they normally.


I'm guessing, you're from holland, right? :lol:

Since when is bad grammar related to Holland?


This coax looks like a good start. Your piston is very long (and thus heavy), see if you can shorten it.
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Unread postAuthor: Willdebeers » Sun Nov 29, 2009 7:39 am

What is related to holland is legal weed and prostitutes. :D
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Unread postAuthor: Major Collins » Sun Nov 29, 2009 8:46 am

may i ask... what fitting and how did you attach the blow gun to the tee? :)
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Unread postAuthor: qwerty » Sun Nov 29, 2009 10:00 am

what fitting and how did you attach the blow gun to the tee?

It looks like 3/4 to 1/2 bushing then a 1/2 to 1/4 reducer.
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Unread postAuthor: MountainousDew » Sun Nov 29, 2009 12:41 pm

Willdebeers wrote:What is related to holland is legal weed and prostitutes. :D

Two of the best things I can think of... :D haha.
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Unread postAuthor: psycix » Sun Nov 29, 2009 2:10 pm

Willdebeers wrote:What is related to holland is legal weed and prostitutes. :D

Which in turn, result in bad grammar... you've got a point there. :lol:
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Unread postAuthor: airheadnoob » Mon Nov 30, 2009 12:27 am

yes bad this grammar is. O.o
i did use a 3/4 to 1/2 and then 1/2 to 1/4.

i had a qev gun that didn't make a vapor cloud which had the same piston and had a bigger air chamber.

if i change the 3/4 t to a 1/4 t would that do much?
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Unread postAuthor: qwerty » Mon Nov 30, 2009 2:45 am

if i change the 3/4 t to a 1/4 t would that do much?

No, it wont but it will reduce pilot volume.
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Unread postAuthor: jackssmirkingrevenge » Mon Nov 30, 2009 2:52 am

psycix wrote:Which in turn, result in bad grammar... you've got a point there. :lol:


The weed I can understand, but prostitutes?

"Laura dearest, please go a little slower! Can't you see I'm trying to access a potato launching forum while you pleasure me and it's interfering with my grammar!"

*sigh*

Seriously, you Dutch folk hehe
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Unread postAuthor: tghhs » Mon Nov 30, 2009 3:07 am

heheehe (message to short)
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