ACME leadscrew. By Vanover Machine & Repair. 37:13 video:
https://www.youtube.com/watch?v=f4eg6RYWl18
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ACME leadscrew. By Vanover Machine & Repair. 37:13 video:
https://www.youtube.com/watch?v=f4eg6RYWl18
The ball screw has no self-locking property. The acme lead screw has the advantage of self-locking. Another disadvantage of ball screws is their susceptibility to be back-driven due to their very low friction.