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the thing is that i would prefer being able to open them at any time, even on the highway. as im somewhat of a slow-driver i need to watch my back more oftenly than my front. and it would help in confusing situations.
also when connected to the reverse lights you could let the system open, but it would stay open as you need a switched signal to close it back again if using a dc motor.
my idea for now would be to use my small motor, make some reductions for it with wooden gears or pulleys because its not powerfull enough to directly open or close the flaps. and then make it rotate some kind of wheel with a rod or shaft attacked to it (like steam locomotives had) that would push and pull. but with a stop to it so the wheel can only make half a turn. and then with a switch you could invert the current and make it open and close. but that would still require to turn off the switch as soon as the flaps are in place, otheriwse the engine keeps trying to push.
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