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 68 users online :: 5 registered, 0 hidden and 63 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

Unread postAuthor: jackssmirkingrevenge » Sun May 02, 2010 12:50 am

Good stuff, though 100 psi is an insult for this thing :P

I would definitely sleeve the whole barrel with thicker pipe, no need to go the whole hog with baffles to make a suppressor, just drill a few holes in the muzzle and the large volume will do the rest :) don't forget than any air that doesn't go straight out of the muzzle is cutting down on recoil.

Instead of a stock (since the thing is already bloody long enough :roll:) which not just add a pistol grip forward of the blowgun with a rod to operate the lever? Then all you'd need is a buttpad et voila, anti-materiel rifle style :)

Image
  • 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 » Sun May 02, 2010 1:03 am

though 100 psi is an insult for this thing

Yeah, I'm a bit anxious about getting my fridge compressor setup up and running. Instead of plinking at 100PSI (fill, load, shoot, repeat) from my air compressor, i'll be plinking at 350-450PSI :shock:

I would definitely sleeve the whole barrel with thicker pipe

I would like to but I can't find any pipe the right size yet. This thin brass pipe makes it impossible to breech load because if you cut a hole in it for the projectile it probably can't support itself.

Instead of a stock (since the thing is already bloody long enough ) which not just add a pistol grip forward of the blowgun with a rod to operate the lever? Then all you'd need is a buttpad et voila

I've found another hose so I can move the blowgun forward and under the chamber. Then I just need a buttpad. I'm still thinking about adding a rod for the blowgun, the whole trigger motion moves the gun too much.

Keep the ideas rolling :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: jackssmirkingrevenge » Sun May 02, 2010 1:20 am

It could be any old DWV pipe to sleeve the barrel, it won't be under much stress anyway.

MrCrowley wrote:I've found another hose so I can move the blowgun forward and under the chamber.


Image

Bigger pilot volume makes JSR cry
  • 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 » Sun May 02, 2010 1:40 am

It could be any old DWV pipe to sleeve the barrel, it won't be under much stress anyway.

Oh do you mean to sleeve over the copper? Is there a reason you want it a bigger diameter if that is the case haha?

Bigger pilot volume makes JSR cry

It wont be much more. 1/8" NPT threads, hose rated for 4500PSI. You couldn't pass a kidney stone through this thing :wink:
  • 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: jackssmirkingrevenge » Sun May 02, 2010 1:49 am

MrCrowley wrote:Oh do you mean to sleeve over the copper? Is there a reason you want it a bigger diameter if that is the case haha?


I was thinking along the lines of this suggestion.

Image

You couldn't pass a kidney stone through this thing :wink:


I wouldn't put it past you to have tried that out :D
  • 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 » Sun May 02, 2010 2:00 am

Problem is that I can't remove the copper shroud without messing up a lot of sh|t (in other words; it's epoxied). What I could do is drill through the copper (shroud) and brass (barrel) and then use a larger diameter pipe to cover the holes in the copper and brass tubes. So it'd look like this:
Image

Tomorrow I'll look at using a lever for the blowgun, possibly moving the blowgun forward, scope mounts, the silencer idea and the buttpad thingy. :P

I wouldn't put it past you to have tried that out

It was an accident. Just ask Tiger, he knows all about misplacing his club and balls :wink:
  • 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

Previous

Return to Pneumatic Cannon Database

Who is online

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

Reputation System ©'