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 84 users online :: 5 registered, 0 hidden and 79 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

1" Full Metal Piston Cannon - WIP (pic heavy)

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: metallover » Fri Jul 01, 2011 11:16 am

Yeah! Awesome!! Spudfiles is the best!

There are a couple on ebay for $36 shipped does that sound like the cheap price you are talking about?
  • 0

User avatar
metallover
Sergeant
Sergeant
 
Posts: 95
Joined: Fri Apr 18, 2008 12:20 pm
Reputation: 0

Unread postAuthor: urgle the danish cow » Fri Jul 01, 2011 11:20 am

metallover wrote:Yeah! Awesome!! Spudfiles is the best!

There are a couple on ebay for $36 shipped does that sound like the cheap price you are talking about?


yeah i got mine for my pcp for $45 so you are good to go! sure beats buying ones off a retailer when they want hundreds
  • 0

User avatar
urgle the danish cow
Sergeant Major
Sergeant Major
 
Posts: 176
Joined: Sun Jul 26, 2009 4:48 pm
Reputation: 0

Unread postAuthor: metallover » Fri Jul 01, 2011 6:33 pm

I did a few searches on here and google and came up dry.

Will my air hose blow if taken to high pressures? like 500psi?

And if it will, what should I get to replace it? Do I need to make my own?
  • 0

User avatar
metallover
Sergeant
Sergeant
 
Posts: 95
Joined: Fri Apr 18, 2008 12:20 pm
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Sat Jul 02, 2011 1:01 am

Plenty of hose on eBay that will take 4500 psi with 1/8 NPT male threads on each end.

http://cgi.ebay.com/Paintball-High-Pres ... 3f05b40c0b

You might also want to get some quick connect fittings:

http://cgi.ebay.com/PAINTBALL-GUN-HOSE- ... 4156388249
  • 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: metallover » Sun Jul 10, 2011 11:08 am

I ordered that hose and got it in the mail yesterday- perfect for what I need! Thanks JSR!! :)

I got an old air compressor for the tank yesterday also- but I'm not sure how it will work. It is a little too big at 8 gallons and I don't know if I feel safe putting 500psi in it. That and it will take a long time to fill up. :(

How much pressure do you think it's good to with my fridge compressor? Working pressure is rated at 120psi. :?

Image

Image

Right now I'm thinking it's useless but it's a strong metal tank maybe it'll work?
  • 0

User avatar
metallover
Sergeant
Sergeant
 
Posts: 95
Joined: Fri Apr 18, 2008 12:20 pm
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Sun Jul 10, 2011 12:06 pm

metallover wrote:I ordered that hose and got it in the mail yesterday- perfect for what I need! Thanks JSR!! :)


Glad to have been of assistance :)

I got an old air compressor for the tank yesterday also- but I'm not sure how it will work. It is a little too big at 8 gallons and I don't know if I feel safe putting 500psi in it. That and it will take a long time to fill up. :(

How much pressure do you think it's good to with my fridge compressor? Working pressure is rated at 120psi.


Don't use it for the fridge compressor. It's far too big and not strong enough. What you're looking for if you want an accumulator for the fridgy is a small CO<sub>2</sub> fire extringuisher.

Right now I'm thinking it's useless but it's a strong metal tank maybe it'll work?


Don't take its strength for granted:

Image

What you can use it for if the compressor still works is to feed 120 psi to the fridge compressor to have it build pressure up quicker.
  • 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: metallover » Sun Jul 10, 2011 1:39 pm

Oh my god! Was that a member on here's tank? That looks gnarly! :shock:

My free compressor is dead,, the motor still works but the rest of it has gone to hell. Air intake was almost plugged w/ dirt.

I have a couple other compressors that I could hook up the the intake! I will do that soon. :)

And now I'm on the sprawl for a co2 fire extinguisher! A small one I'm assuming is roughly as large as a 2L pop bottle?


I made some nail darts out of paper, hot glue, and a 16 penny framing nail. I shot at some 5-ply 3/4" plywood.

Both shots were at 250psi. First shot was at about 20' and aim was spot on. When clean through the plywood and particle board behind it and the two peices of wood got stuck together tight. :) 2nd shot at 30' (distance between my house and the fence) was within 6" of where I was aiming.

Image

Image

Image

(pics blurry, there was some condensation on the lens, it is really hot and humid out)
  • 0

User avatar
metallover
Sergeant
Sergeant
 
Posts: 95
Joined: Fri Apr 18, 2008 12:20 pm
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: jackssmirkingrevenge » Sun Jul 10, 2011 1:51 pm

metallover wrote:Oh my god! Was that a member on here's tank? That looks gnarly! :shock:


No, but it does happen, make sure to drain the moisture out every now and then:

Image

Image

And now I'm on the sprawl for a co2 fire extinguisher! A small one I'm assuming is roughly as large as a 2L pop bottle?


On the prowl, surely ;) yes, 1-2 litres should be a decent accumulator without stressing the fridgy too much.
  • 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: metallover » Sun Jul 10, 2011 5:31 pm

Thanks for the advice JSR!

I have been looking for an "accumulator" for awhile now because the compressor had problems starting up between shots. Today I realized it wasn't getting hot it just has trouble starting when there is pressure in the output! I had a 25' hose on the end of it before that would stay at about 200psi,, no wonder it had trouble starting!

Now if I take all the pressure out of the [small] hose, it starts fine. If I can find an old fire extinguisher, I'll take it and use it,, but I'm not too crazy about it anymore.


I got some work done today

Other than that, I got the new hose on and fired a few shots at 300psi. It shot very well, and was pretty loud!

Image

I put some cloth and steel wool in the Tee in an effort to catch some of the oil that makes it out.

Image

I also got rid of some pilot volume. :)

Image

I dunked it in some water and the only significant leak is from the piston. I need to lengthen my piston as it gets out of line some times,, Maybe I can lap the valve a little better and hope the leak stops....

Starting at 300psi I was down to 260psi after 1 minute and down to 210psi after 2 minutes.

But I'm very happy with how things are going!!! :D
  • 0

User avatar
metallover
Sergeant
Sergeant
 
Posts: 95
Joined: Fri Apr 18, 2008 12:20 pm
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Sun Jul 10, 2011 10:19 pm

metallover wrote:I also got rid of some pilot volume. :)


I can sleep better now :)
  • 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: c11man » Mon Jul 11, 2011 1:05 am

that's looking pretty good and fairly accurate with darts.

On my fridgy I bought a 20lb co2 tank and it is great as an accumulator 8)
  • 0

User avatar
c11man
Brigadier General
Brigadier General
 
Posts: 783
Joined: Fri Feb 06, 2009 4:37 pm
Location: Wisconsin, USA
Country: United States (us)
Reputation: 0

Previous

Return to Pneumatic Cannon Database

Who is online

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

Reputation System ©'