About this 3D model

Please consider donating: https://paypal.me/carlosgs We are looking for new ways to create a compact solution for moving the axis of a CNC machine. This is one of the concepts. The main idea is that the threaded rod is still (it does not rotate). Instead, the nut is the one that rotates. Please check out the video: http://www.youtube.com/watch?v=gZ7W4M-OSXI