GoKawiilOpen-source project releases sub-micron XYZ micro-manipulator design
A new open-source hardware project called Open Micro-Manipulator offers a motorized XYZ motion control platform built from off-the-shelf stepper motors and low-cost magnetic rotary encoders. Using a parallel kinematic structure, miniature ball joints, and a 'magnetic gearing' technique that multiplies encoder resolution by 30x, the device can move in steps as small as 50nm and is controlled via G-code over USB. The creators have also released hardware version 4.0, fixing self-collision issues during homing and improving the ball joint block connection.