Mechanics

After many iterations, attempting different modes of accomplishing linear motion, I've finally arrived at a simple wench mechanism. As things sometimes go, the simplest approach is the best. This system lowers cost and removes the strict necessity of precise construction that a rack and pinion system demanded.



Details:The motor is a high-torque (110 oz/in) continuous rotation servo.





2 Horizontal drawer slides mounted to each other in opposing directions provides smooth movement plus precision through rubber stops . 16" long with 12" of forward and backward movement.

36" Square wooden dowel, mounted to slides. Acts as "spine" to hold/support acrylic.

Acrylic "cube" will be 8"x8"x36", collared around the central support stud and attached to the horizontal spine.

A 2" winch is attached to the motor shaft, but this will get updated to 3" for increased speed. Coated wire rope is wrapped around and mounted to eye hooks on the front of dowel. Oval couplers on these ends control tension.