Spirit Halloween Ghostbusters Ghost Trap servo mod
thingiverse
The idea behind this one is pretty simple. You take apart your spirit ghost trap's existing mechanics. The one part you need is the part that directly attaches to the doors. This mount was designed so that you take that "cartridge" and mount it with the screw holes facing the posts at the top. you'll remove the springs to the lower mechanism as well, and then mount your servos, put the modded arms with some wire on each of those ends to open and shut the trap.
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