Completed a 1 to 1 scale model that has meet my goal for movement and stability. I will adjust the lengths of the legs to account for the thickness of the plywood. I need to lengthen the track so that the truck I plan on constructing a model for presentation. while I was not able to construct a full trapdoor for the theater, I can make design a CAD files and shop orders for a future build of this project, if someone wants to take up my project.

This is the frame to stand in for the thickness of the platform

CAD Designs and notes while building.

Squaring up the frame is important for symmetrical movement in the legs.