A follow focus system

I have developped a follow focus system. It's used to control precisely the camera's zoom & focus.

The main problem was to build a very compact dragging system between the servomotor and the wheel.

A controled vice

After the sine vice, I wanted to develop a fully controled standard vice. I only developed the Z axis.

The principle is simple, I use a screw-wheel system with the right angle to have an irreversible system.

Sine vice

It's a sine vice.