SpudFiles

Hi every body
I noticed that a lot of new members wants semi auto, and I saw a lot of explanations about slid valves and 3 ways. As I wasn´t able to find these parts, I decided to find a way of make a semi auto from a mechanic way instead of pneumatic way. So I had this idea, as most people here uses qevs that are piloted by a blowgun, by connecting the blowgun trigger with a ball valve for re charging the secondary chamber( when you pull the blowgun trigger, the ball valve closes, when releases the trigger, the ball valve opens with a spring) as the ball valve doesn´t need to be fully open to recharge the secondary chamber quickly
this system should work with blowgun piloted self close qev/piston valve or bb guns what uses a blowgun as firing valve
If I wasn´t clear enough here is a diagram, feel free to ask questions

Thats gonna be one hell of a trigger pull... at least it would be with the stiff ball valves I got around

no it won´t be hard to pull the trigger 1/4 ball valves are really easy to open, so you can use a weak spring...

wouldn't the main chamber de-pressurize when you pull the trigger because it will all exhaust before the ball valve is shut and where can i get a popoff valve in the UK thats not expensive or how do you make them.

the ball valve wasn´t fully opened, so a slight movement will shut it down

wyz2285 wrote:the ball valve wasn´t fully opened, so a slight movement will shut it down

Ok

I think it's a good idea! With a 1/4" ball valve it should be an easy trigger pull.