Design intent was to make it so both motors controlling the stage were mountable on the same platform. Other xy stage designs I've seen have the second motor mounted on the movable platform created by the first stage. I don't like the idea of needing flexible wires so I came up with this design prototype.
Prototype used two 1/4" -20 screws and two screw drivers
Improvements that can be made are:
using a proper gear profile
Building in axle to gear
Tighter tolerances in some locations
Redesign for printing orientation
Outer gear/track on both sides for alignment stability.
The author marked this model as their own original creation.