Quote:
Originally Posted by ThunderCactus
If you're on a mosfet, the only electrically safe system would be to use a mechanical relay to cut power between the motor and mosfet.
Regardless of whether or not the trigger is electrically disconnected, the mosfet can potentially still fire due to an electrical short (like water), or a current spike causing the mosfet to fuse closed.
Everyone wants burst, but you know who has burst? Nobody. Because burst fire is useless.
The problem isn't getting the gun to stop shooting after 3 shots, it's getting the gun to do it reliably and consistently. The comp determines the stop cycle from the cutoff lever cutting power to the trigger. Without the cutoff lever, there's no semi-auto.
So you need a sensor somewhere to relay back positional information on the sector gear. Either cut the part of the selector that disengages the trigger off and put a switch on it to cut rotations of the sector gear.
Or, like the triggermaster, setup semi-auto timing on startup with 3 semi auto shots and have the comp use a timing delay to produce burst fire.
Or, like the ptw, use an IR sensor to detect the position of the sector.
You can use an 11.1v lipo battery no problem. Just design your SW-comp to pulse the output so you can reduce motor speed in 10% increments.
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The 3Burst is aesthetic, obviously I wouldn't use it in a real match. I just want it to be there.
I think the second solution would be the easiest and cheapest. So on burst, I'd pull the trigger once and the chip would need to pulse three times.
Can you clarify the first method you suggested? What exactly is the sector gear?