Search found 746 matches

by mobile chernobyl
Fri Dec 29, 2006 11:38 am
Forum: Pneumatic Cannons
Topic: QEV fill location
Replies: 2
Views: 409

the chambers fine, i've also seen people fill it throught the pneumatic actuation port on the qev itself.
by mobile chernobyl
Fri Dec 29, 2006 1:16 am
Forum: Pneumatic Cannons
Topic: copper looks cool...
Replies: 5
Views: 706

Bluetooth - Yea i definately agree that the pvc ballistics design is worn out and it got poor flow with all the bends and it all leads up to a weak 1" sprinkler valve. I'm sure it still packs a punch, but i think my design looks a little cooler, or abstract is it? lol. well heres the pics of both gu...
by mobile chernobyl
Fri Dec 29, 2006 1:07 am
Forum: Pneumatic Cannons
Topic: groovy copper rifle
Replies: 9
Views: 3359

jrrdw - It takes about 2-4 hours from start to end. take in mind that includes cutting the pipe, cleaning, aligning and whatnot. i just use a mapp gas set up that cost about $20 at home depot, but propane would work just as well, just not as fast. triggahappy - yea they arent cheap, it cost me about...
by mobile chernobyl
Tue Dec 26, 2006 6:27 pm
Forum: Pneumatic Cannons
Topic: groovy copper rifle
Replies: 9
Views: 3359

Spudstuf - Hmm, i have noticed that, ill take note of that in my design im building tonight (nearly identical, but barrel will be big enough to launch a 12gr CO2 powerlet (sweet). This gun will retain the same dimentions, but ill have a 1.5' section of 2" copper in place of the 1.25" copper in the f...
by mobile chernobyl
Tue Dec 26, 2006 1:42 am
Forum: Pneumatic Cannons
Topic: groovy copper rifle
Replies: 9
Views: 3359

groovy copper rifle

Well i got bored waiting for the parts for my 3" porting 3000 cu in mega cannon, so i decided to build a copper sniper rifle. my first venture into copper mind you... [albumimg]276[/albumimg] Chamber: appx 3+ feet of 1.25 inch copper pipe (i say 3+ cause of all the FRIGGEN EXPENSIVE copper fittings....
by mobile chernobyl
Tue Dec 26, 2006 12:38 am
Forum: Pneumatic Cannons
Topic: copper looks cool...
Replies: 5
Views: 706

Yea i guess it is kinda "odd looking" lol but i kept it "abstract" or simple so that there would be as few bends as possible to improve airflow. Its designed to be held like a modern armyish/bullpup rifle, with a buttstock (the 90* bend portion in the rear), a handle (kinda obvious, but the piece in...
by mobile chernobyl
Tue Dec 26, 2006 12:12 am
Forum: Pneumatic Cannons
Topic: copper looks cool...
Replies: 5
Views: 706

copper looks cool...

Well i got bored waiting for the parts for my 3" porting 3000 cu in mega cannon, so i decided to build a copper sniper rifle. my first venture into copper mind you... [albumimg]276[/albumimg] Chamber: appx 3+ feet of 1.25 inch copper pipe (i say 3+ cause of all the FRIGGEN EXPENSIVE copper fittings....
by mobile chernobyl
Mon Dec 11, 2006 4:35 pm
Forum: Pneumatic Cannons
Topic: Syncronizing dual 2" porting valves
Replies: 16
Views: 1282

Here are updated pictures of the valve, the chambers im still unsure of. valve sealed [albumimg]260[/albumimg] valve open [albumimg]259[/albumimg] better view of whole assmbly. [albumimg]261[/albumimg] let me know if theres any obvious flaws with this design, and ill ellaborate later. The design sho...
by mobile chernobyl
Fri Dec 08, 2006 8:25 pm
Forum: Pneumatic Cannons
Topic: Syncronizing dual 2" porting valves
Replies: 16
Views: 1282

OK the time to order the parts is coming soon and i need a definate answer on this. Sofar i'm confident with the 3" porting piston, but design one has me using about a 1800 cu in resevoir, design 2 has a 3000 cu in tank. obviously i want to make design 2, just because it will be... bigger? haha why ...
by mobile chernobyl
Mon Dec 04, 2006 1:30 am
Forum: Pneumatic Cannons
Topic: Syncronizing dual 2" porting valves
Replies: 16
Views: 1282

Yea i definately agree about the "cooler looking" aspect, but wouldn't a larger port area equate to more power? I've also got a 3" port barrel sealing "X" or cross style valve on paper that looks very promising and cheaper, and thanks to some reading on the spudtech forums, pretty easy to make. so w...
by mobile chernobyl
Sun Dec 03, 2006 4:50 pm
Forum: Pneumatic Cannons
Topic: Syncronizing dual 2" porting valves
Replies: 16
Views: 1282

Syncronizing dual 2" porting valves

Is there a need to syncronize dual barrel sealing "T" valves (i.e. "mauler"ish in design)? I'm planning on making my biggest cannon yet over holiday break and it will be rather big. to launch it efficiently i could either make a 3" chamber sealing "T" valve or dual barrel sealing "T" valves. I guess...