About this 3D model

I designed the ball bearing nut for the linear screw of linear stepping motor. It is a kind of derivative of Mark Sollack's threadless ball screw concept. This is one of the concept design to prevent backlash on the linear stepping motor. I did not test yet. but I hope it would be work properly. The ball bearing nut was designed for quadruple-start 8mm lead length, 8pi linear screw. The slope angle is 17.6568 deg. Test Video : https://youtu.be/vhodLP9ws0Q