Yep ... that's the sort of thing I was thinking of. Very simple. That guy is a couple of steps ahead of my idea ... only a single linear actuator, and probably has the linkage setup so no limit switch is needed ... full stroke is full up to full down.
That actuator can be bought for around $60, looks like a simple 12v, 4" stroke piece.
Considering the price of parts and fabrication labor ... pretty reasonable price.
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