Search found 81 matches

by CooperJS
Tue Oct 01, 2013 8:04 am
Forum: Ammo & Parts
Topic: The Offcial Machinist Thread: Revised 01/04/2014
Replies: 1095
Views: 77590

Hey wyz what did you use for the barrel on your pcp rifle that you are currently building??
by CooperJS
Thu May 30, 2013 2:00 am
Forum: Off-Topic Hobbies
Topic: any one into mountain biking
Replies: 9
Views: 958

Hahaha cheers man, your place sounds pretty awesome!
by CooperJS
Wed May 29, 2013 5:30 am
Forum: Off-Topic Hobbies
Topic: any one into mountain biking
Replies: 9
Views: 958

Here are the trails i ride. They are pretty awesome and alot has changed since this event. Im not in this video by the way haha.

by CooperJS
Wed May 29, 2013 2:21 am
Forum: Off-Topic Hobbies
Topic: any one into mountain biking
Replies: 9
Views: 958

I ride bmx dirt trails, like big jumps and stuff like that, but im pretty keen to get a downhill bike soon!
by CooperJS
Mon Apr 08, 2013 1:09 am
Forum: Pneumatic Cannons
Topic: my two new air guns (with videos)
Replies: 9
Views: 1697

Yea thats what i was thinking, because it seems to pilot alot of air before it shoots. Thinking of machining up some delrin (i think thats what iv got) to put in the back with some screws holding it down
by CooperJS
Sun Apr 07, 2013 4:43 am
Forum: Pneumatic Cannons
Topic: my two new air guns (with videos)
Replies: 9
Views: 1697

well here are some pictures of the two air guns. Air cannon http://i.imgur.com/snQ2vx4.jpg http://i.imgur.com/Xc01nM7.jpg http://i.imgur.com/qS4PF3w.jpg http://i.imgur.com/wW248Db.jpg http://i.imgur.com/BkYWxRl.jpg http://i.imgur.com/cr7WYIq.jpg http://i.imgur.com/NTAviG0.jpg http://i.imgur.com/f9Pl...
by CooperJS
Fri Apr 05, 2013 9:18 pm
Forum: Hybrid Cannons
Topic: How does a piston hybrid work??
Replies: 7
Views: 1982

Thanks Crna ill try that soon once I get some building materials
by CooperJS
Thu Apr 04, 2013 7:01 am
Forum: Pneumatic Cannons
Topic: my two new air guns (with videos)
Replies: 9
Views: 1697

Well it is very simple, i was very suprised by how simple it is and how well it works, here is a link to it.

http://www.airgununiverse.net/semiauto.html

Cooper
by CooperJS
Wed Apr 03, 2013 4:25 pm
Forum: Pneumatic Cannons
Topic: my two new air guns (with videos)
Replies: 9
Views: 1697

i made the piston on the lathe but i can remember what the material is i think it is delrin maybe. Ill take a picture later today of it

Edit: I forgot to say thanks! @Jrrdw
by CooperJS
Wed Apr 03, 2013 7:38 am
Forum: Pneumatic Cannons
Topic: my two new air guns (with videos)
Replies: 9
Views: 1697

my two new air guns (with videos)

Hey guys here are my two air guns. One is a Golf ball cannon and the other is a semi auto marble shooter. I currently have no pictures of the two air guns but i do have videos of them. The golf ball cannon does have a pvc stock but i took that off before i went to shoot it and make the video and it ...
by CooperJS
Sat Mar 30, 2013 12:30 am
Forum: Hybrid Cannons
Topic: How does a piston hybrid work??
Replies: 7
Views: 1982

hmmm im starting think that i might use a burst disc for my first hybrid since its really simple, but how do you know what type of burst disk you need to use with the mix? E.g. Coke can, tin foil and so on.
by CooperJS
Fri Mar 29, 2013 7:00 am
Forum: Hybrid Cannons
Topic: How does a piston hybrid work??
Replies: 7
Views: 1982

so when the Fuel air mix ignites it shoots the piston back letting all the pressure out, am i correct??

Edit: What would you use for a sealing face? would you still use rubber or some other material?
by CooperJS
Thu Mar 28, 2013 11:18 pm
Forum: Hybrid Cannons
Topic: How does a piston hybrid work??
Replies: 7
Views: 1982

How does a piston hybrid work??

Hey guys im thinking of building a piston hybrid because i hate the idea of cutting out burst disks and what not but i just cant seem to get my head around on how they work? Iv got a metal lathe and all them goodies like that so building it shouldnt be a problem once i find out how it works. Im plan...
by CooperJS
Wed Sep 05, 2012 12:51 am
Forum: Pneumatic Cannons
Topic: Need help with fridge compressor wiring
Replies: 8
Views: 1928

i have just used the paper clip to see if it would work!! :D

Cooper
by CooperJS
Tue Sep 04, 2012 8:09 am
Forum: Pneumatic Cannons
Topic: Need help with fridge compressor wiring
Replies: 8
Views: 1928

[youtube][/youtube]

Quick video of the fridge compressor running :D

Cooper