My New QEV Gun

[nathanhd123]

So after multiple attempts I have finally got my gun working. It was originally made to be a piston valve but I was desperate to get it working and so just used a 3/4" QEV. Its my first pneumatic so be nice.

Specs:


Chamber- Propane Torch Tank
Barrel- 15mm OD Copper Pipe
Main Valve- 3/4" QEV
Pilot Valve- 1/2" Ball Valve

Still needs a lot of work but I really wanted to shoot it.

Damage Pics will be coming tomorrow and will be shortening the barrel.

[mattyzip77]

Good job. I would add a blow gun to the end of the ball valve for easier piloting!! Also, what p s i have you brought it up to, and what are you using for ammo??? Definatley shorten that barrel, like in half!!

[Lockednloaded]

Definatley shorten that barrel, like in half!!

Don't go chopping up a piece of copper without numbers to back it up. It may be that the last couple feet of yourbarrel only add a little bit extra speed, but if you're fine with the length then just leave tithe same.

Any details on the propane tank attachment?

[nathanhd123]

Any details on the propane tank attachment?

I just used an empty propane bottle a plumber gave me. It already had a 3/4" thread on it so I just drilled the valve out and screwed it on.

It said on the bottle it was rated to 30 bar.

I've taken it up to 80 psi so far. Shot a bit of wood at some plywood that was 10 metres away at an angle and it deflected and carried on for another 10 metres.

[nathanhd123]

whoops double post. Modderator please delete.