Ball screw drive and a ball-screw construction.
- Inferior acceleration – deceleration
- Backlashes, lost motions, large dead zone. Stick-slips.
- Shape distortion at the points of axes feed changes with especially negative effect on roundness
- Rapid wear + loss of positioning accuracy.
Sodick flat linear motor in a Sodick EDM.
- Nearly instant acceleration-deceleration
- Free of backlashes, free of lost motions, negligable dead zone. Free of stick-slips.
- Lack of shape distortion at axes feed changes
- Screw-less drive with Longevous Precision
