These are called "Butterfly Gears" and not a new topic, although they're just starting to reach mass production now. Some notes regarding the OPs comments:
Quote:
Originally Posted by vic_man4
Some issues I see is with HIGH ROF setups the gun will short stroke because the sector will engage with the pistons rack before the piston/spring reaches total decompression, sounds bad.
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The purpose of this gear IS to make a high ROF setup. These gears also require short-stroked pistons (8 tooth rack), so if you're concerned about the sector gear smacking against your piston tooth rack, it's a minimal worry. You don't necessarily need high FPS to get it to work right, but a very very weak spring could cause problems.
This type of gear set can only be used in short barreled weapons due to the short stroke of the piston. It can't compress enough air volume to push a BB through a long barrel.
In general, the battery used versus the motor versus the torque level of the gears versus the spring all have to be balanced out to get a setup like this to work properly. One can't expect to just throw parts in to work.
Quote:
Originally Posted by The Saint
Well, technically his second thread was about a crazy sector design, and it only mentions the KWA on the side. 
I wonder if such a sector can trip the cut-off lever correctly. |
It can. These have been done.