the chambers fine, i've also seen people fill it throught the pneumatic actuation port on the qev itself.

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...

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...

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...

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....

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...

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....

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...

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 ...

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...

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...