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I had some old servos laying around so I remixed the arm and slider to accommodate them. I also incorporated the servo arms directly on the pinion and gripper. See https://www.thingiverse.com/thing:2687600


I used old Futaba s148 servos for the slider, but these 25t spindle servos should work fine:

These are the servos I used on the gripper:

Note that in my experience, servos with standard angular throw work fine, No need to use 160 or 180 degree servos.

Remix - Fully 3D-Printed Rubik's Cube Solving Robot