Controlling ROF in a BB SMG without a hammer/bolt (v2)
Posted: Sat Jun 16, 2018 9:06 pm
Hey guys, back again, and before you know it I'm saving for a wedding ring. Honestly I feel like it was only a few months ago I signed up and started checking this site out often.
I'm back to present an idea and possible beacon of hope for my BBMG comrades.
Basically, the simple solution to this age old issue is a pivot-delay with a cam. IMHO.
BB's enter the barrel and push the very weak pivot up and out of the way, as the BB overrides the pivot, the back end (or some other delay pin) will drop down just in front of the next BB and just behind the fired round, far enough and for long enough to seperate the two rounds. Thus initiating delay. Reminding me of the plunger in a VZ .61
The outcome as we all know is better accuracy, power per shot, and a more consistent fire rate. (by how much will depend on various things of course).
This particular gif desgin incoperates a sealed piston magazine that draws the ammo up using the exit flow of air. And so far the tests I've conducted with this system have proven promising. granted the piston doesn't fall back down... which it shouldn't if the magazine is sealed. - Of course, the magazine is sealed because if it isn't air will escape elsewhere rendering the mechanism and air gun close to useless.
Everything in this design was made for simplicity, relaibility and to be fool-proof. The hardest part? making and sealing the pivot. of course.
Thoughts?
I'm back to present an idea and possible beacon of hope for my BBMG comrades.
Basically, the simple solution to this age old issue is a pivot-delay with a cam. IMHO.
BB's enter the barrel and push the very weak pivot up and out of the way, as the BB overrides the pivot, the back end (or some other delay pin) will drop down just in front of the next BB and just behind the fired round, far enough and for long enough to seperate the two rounds. Thus initiating delay. Reminding me of the plunger in a VZ .61
The outcome as we all know is better accuracy, power per shot, and a more consistent fire rate. (by how much will depend on various things of course).
This particular gif desgin incoperates a sealed piston magazine that draws the ammo up using the exit flow of air. And so far the tests I've conducted with this system have proven promising. granted the piston doesn't fall back down... which it shouldn't if the magazine is sealed. - Of course, the magazine is sealed because if it isn't air will escape elsewhere rendering the mechanism and air gun close to useless.
Everything in this design was made for simplicity, relaibility and to be fool-proof. The hardest part? making and sealing the pivot. of course.
Thoughts?