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How to check backlash on cnc machine?

How to check backlash on cnc machine?

Update Time:2020-06-27

Here have two way to setting backlash:

1. Mechanical adjustment: adjust the ball screw nut and tighten it. ( note: Can't be too tight)

2. It can use the laser interference instrument to detect the backlash value of each position of the machine , and input into the machine internal parameters for compensation.