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WORKING Simple Semi auto mechanism

Posted: Fri Apr 30, 2021 3:44 pm
by brandon2513
This is a simple pneumatic mechanism I made. Just uses a 3 way roller mechanical valve and a QEV. I need ideas on a working bolt so if you have any plz lmk.
https://www.youtube.com/watch?v=giUCB2LV_QM

Re: WORKING Simple Semi auto mechanism

Posted: Fri Apr 30, 2021 5:46 pm
by farcticox1
This works really well
piston.jpg
piston.jpg (11.86 KiB) Viewed 167 times
I built it into my single shot airsoft
semiauto (1).jpg
semiauto (2).jpg
Made the piston from a 6mm bolt and a piece of nylon
20200822_190607.jpg
20200822_190607.jpg (19.39 KiB) Viewed 167 times

Re: WORKING Simple Semi auto mechanism

Posted: Sun May 02, 2021 7:00 am
by jackssmirkingrevenge
The blow forward bolt definitely works and is relatively easy to build:



What projectiles are you looking to fire though?

Re: WORKING Simple Semi auto mechanism

Posted: Mon May 03, 2021 7:59 pm
by brandon2513
jackssmirkingrevenge wrote:
Sun May 02, 2021 7:00 am
The blow forward bolt definitely works and is relatively easy to build:



What projectiles are you looking to fire though?
i was thinking paintballs or rubber paintballs

Re: WORKING Simple Semi auto mechanism

Posted: Fri May 07, 2021 12:05 pm
by jackssmirkingrevenge
For rubber balls a simple breech like farcticox1 made here would do the trick, paintballs would get smashed though.