Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 71 users online :: 5 registered, 0 hidden and 66 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

6mm Coaxial - Part 2

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

6mm Coaxial - Part 2

Unread postAuthor: MrCrowley » Wed Apr 28, 2010 11:39 pm

Nothing special here really. Just an upgrade on my previous 6mm coaxial. Added a 100cm long brass 6mm barrel, perfect for BBs. Painted black, was previously silver/grey. Everything else is pretty much the same, the only difference is that I can swap out the barrels on this one for when I buy a new length of 8mm brass tube for some ball bearings I have. 6mm barrel has a 10mm copper surround to protect it from getting bent.

Will take it up to 500PSI once I get my fridge compressor finished. In the mean time I take it up to 300PSI with my track pump. Performance is far greater than the previous version (which only had a 20cm barrel).
Anyway, picture time.
  • 0

Attachments
01y.JPG
Not sure why the barrel surround looks bent. It's straight as an arrow.
02y2.JPG
03y3.JPG
04y4.JPG
05y5.JPG
User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: jrrdw » Thu Apr 29, 2010 5:02 am

Nice work MrCrowley...

Getting tired of the polished brass/copper look?
  • 0

When life gives you lemons...throw them back they suck!
User avatar
jrrdw
Donating Moderator
Donating Moderator
 
Posts: 6538
Joined: Wed Nov 16, 2005 5:11 pm
Location: Maryland
Country: United States (us)
Reputation: 25

Unread postAuthor: mark.f » Thu Apr 29, 2010 5:29 am

But most of what I see is painted aluminum. :wink:

Good work. Got a chrony?
  • 0

User avatar
mark.f
Donating Member
Donating Member
 
Posts: 3464
Joined: Sat May 06, 2006 11:18 am
Country: United States (us)
Reputation: 21

Unread postAuthor: MrCrowley » Thu Apr 29, 2010 5:35 am

Getting tired of the polished brass/copper look?

Na, just wanted something different. An all black look. It's a bit rough (due to vice marks and not removing the previous layer of paint fully) but it's good enough for me.

No chrony. I swear it's been on my wish list for 3 years :P
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: deathbyDWV » Thu Apr 29, 2010 7:00 am

Yeah looking good. Can't wait to see some high pressure shots...
  • 0

Life's too short to mark off the items on your wish list...
User avatar
deathbyDWV
Colonel
Colonel
 
Posts: 576
Joined: Sat May 16, 2009 4:02 pm
Location: Owasso, OK
Reputation: 2

Unread postAuthor: chinnerz » Thu Apr 29, 2010 7:18 am

aww got rid of that awesome looking push button valve??

any way looks awesome! i like flat black, gives it a nice clean look... how ever you didnt paint the blow gun?? CBF, or is there another reason

MrCrowley wrote:It's a bit rough (due to vice marks and not removing the previous layer of paint fully) but it's good enough for me.

did you spray and clear over the top?? i find that clear really protects the paint and/or the finish of polished/buffed metal.

any ways to sum up, that is a top effort by you, and the results are apparently quite good (no dmg pics yet but i cant wait)
  • 0

Image
User avatar
chinnerz
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 470
Joined: Mon Dec 28, 2009 8:08 am
Reputation: 0

Unread postAuthor: Crna Legija » Thu Apr 29, 2010 7:34 am

looks nice, you should make a nice stock for it
  • 0

'' To alcohol... The cause of, and solution to, all of life's problems.”
--Homer Simpson

Add me on ps3: wannafuk, 8/11/11 cant wait
User avatar
Crna Legija
Major General
Major General
 
Posts: 2333
Joined: Sun Jul 20, 2008 5:14 am
Location: australia
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: chinnerz » Thu Apr 29, 2010 7:37 am

-_- wrote:looks nice, you should make a nice stock for it


TOTALLY!
  • 0

Image
User avatar
chinnerz
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 470
Joined: Mon Dec 28, 2009 8:08 am
Reputation: 0

Unread postAuthor: SP00K » Thu Apr 29, 2010 12:15 pm

Gorgeous, I'm assuming you used the same valve design as the previous one mentioned?
  • 0

We are all worms, but I do believe I am a glow worm.

~Winston Churchill~
User avatar
SP00K
2nd Lieutenant
2nd Lieutenant
 
Posts: 212
Joined: Wed Dec 03, 2008 4:20 pm
Location: Ohiya
Reputation: 0

Unread postAuthor: Gippeto » Thu Apr 29, 2010 1:15 pm

Nice job Crowley. :)

A suggestion...make a dovetail from a piece of flat steel by beveling the edges with a file.

Epoxy it on...thus eliminating the hose clamp, and providing a more secure and consistant mount for the scope.

Looks like it was made to be put in a stock??
  • 0

"It could be that the purpose of your life is to serve as a warning to others" – unknown

Liberalism is a mental disorder, reality is it's cure.
User avatar
Gippeto
Donating Member
Donating Member
 
Posts: 2393
Joined: Sat Jan 19, 2008 10:14 am
Location: The Great White North...Canada eh!
Reputation: 11

Unread postAuthor: SpudBlaster15 » Thu Apr 29, 2010 1:33 pm

Nice work. Should have very respectable power at 500PSI; I'm looking forward to damage videos.

I also like the painted finish; it makes the launcher look very clean and sleek.
  • 0

People should not be afraid of their governments. Governments should be afraid of their people.
User avatar
SpudBlaster15
Major General
Major General
 
Posts: 2385
Joined: Wed Oct 18, 2006 11:12 pm
Location: Canada
Country: Poland (pl)
Reputation: 3

Unread postAuthor: Mr.Sandman » Thu Apr 29, 2010 2:48 pm

Nice work crowley looks like a nice plinker. You should modify the barrel shroud to work as an integral suppresor and it you could call it the night stalker. :D
  • 0

Yeah, it's that important.
User avatar
Mr.Sandman
Donating Member
Donating Member
 
Posts: 762
Joined: Fri Mar 28, 2008 9:10 am
Country: Antarctica (aq)
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Thu Apr 29, 2010 3:09 pm

SpudBlaster15 wrote:Nice work. Should have very respectable power at 500PSI; I'm looking forward to damage videos.


ditto :) and sleeving the barrel with a wider tube will improve looks and take the bite away from the muzzle blast
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: MrCrowley » Thu Apr 29, 2010 6:03 pm

any way looks awesome! i like flat black, gives it a nice clean look... how ever you didnt paint the blow gun?? CBF, or is there another reason

I've never painted a blowgun before. I might do it, just for the hell of it, otherwise i'll just polish it a little bit to get rid of scuff marks. The blowgun is modded by the way, performance was only a little bit less than the push button valve and the push button valve ended up having seating issues at 300PSI.

did you spray and clear over the top

No, but I've got some in the garage. Last time I did it I didn't wait long enough for the paint to dry and the paint when all runny :oops:

looks nice, you should make a nice stock for it

I'm keeping my eye out for one on an auction site :)

I'm assuming you used the same valve design as the previous one mentioned

Yeah, can't even remember what the piston is made from but it looks like a piece of wooden dowel that had (for some reason) a hole through the middle of it because it looks like i've filled it with bondo. There's an o-ring also.

A suggestion...make a dovetail from a piece of flat steel by beveling the edges with a file.

Guess I could. Still have to attach the dovetail with epoxy like you said. I'll give it a ago, got a free afternoon today.

Looks like it was made to be put in a stock??

It really should be. At one stage the blowgun, ball valve and QC was mounted under the chamber for this reason but I broke a fitting and can't do that anymore. I used a short length of hydraulic hose (only had one) and it had an elbow on one end which got bent when I was tightening it somehow and when I tried to straighten it, it broke off a 1/4" fitting inside its threads.

If I find a cheap stock online I'll try put it on a stock.

Nice work crowley looks like a nice plinker. You should modify the barrel shroud to work as an integral suppresor and it you could call it the night stalker

Thanks. If the noise is an issue, perhaps i'll do that :P

Thanks for the comments everyone.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: MrCrowley » Sun May 02, 2010 12:36 am

Update video:
[youtube]http://www.youtube.com/watch?v=yJJGjE_Xm_8[/youtube]

Nothing spectacular. Just a basic demonstration really, not that you guys need it haha. I can hit an apple at 10m two out of three times. Further than that (15m+) and i'm lucky to hit a 10cmx10cm square at 100PSI reliably due to the blowgun trigger (moves the gun), wind, imperfect and light weight BBs/blowby with the .22 pellets.

At 260PSI and using a steel 6mm BB, I managed to hit a 50cmx30 sign from 50m away two out of three times (50m is actually quite far and then if you count in things like cross winds, drop, imperfections on the BB and barrel, recoil, blowgun trigger etc). At 100PSI using the .22 lead pellets; I got a 1" grouping at 10 yards after 6 shots.

Still a fun plinker, I need to sort out a stock (at 260PSI, the recoil on my cheek hurts like a b|tch), possibly a silencer (maybe fake) and a better scope mount.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Next

Return to Pneumatic Cannon Database

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'