Re: backstop This probably concludes my indoor testing. I broke my ankle a few weeks ago (primary reason for building the airsoft land drone) and I can't get this thing downstairs to bring it outside lol. Re: 5 posts Oh good. I was thinking it might be faster to mail you guys letters. :P You have a ...

Finished my project! Haven't been able to test it outside yet, but it at least fits my standards for safety on an airsoft field. The 1/2" solenoid is massive in relation to my project, so likely will keep the smaller solenoid on the BBMG. Running at 90psi. [youtube]https://youtu.be/PwRwvOVEyFw[/yout...

Looks like lots of interesting data there Jimmy. I'll look at that in more detail alongside my data from the one I built. Farcticox1 that thing is cool! JSR, here ya go :) [youtube]https://youtu.be/zo4Vbpr9yew[/youtube] Anyone know how long it takes to lose the new user posting restrictions? Waiting...

I think I just figured out my BBMG design. I tried putting the barrel along the bottom of the bb chamber, with the air inlet through the back of the endcap, inline with the barrel...about 3/4" inch between air inlet and barrel. With the detent, it works beautifully. I nearly packed it full of .28g b...

I've been playing around with the fantastic GGDT software. Can it be used to model a BBMG? I figured valve open time should be zero. It's a little difficult because of the constant flow, with a significant volume the air can expand into before entering the barrel. It's also a dynamic volume that in...

Hi all, I've been playing around with the fantastic GGDT software. Can it be used to model a BBMG? I figured valve open time should be zero. Also another question about GGDT...would it be wise to set the valve seat diameter to the smallest diameter orifice in my air pathway? Ie I am using a valve wi...