Z at random depths during 3D carve. Help!

Hey Andrew,

this is a frequently reported issue. See here for examples. However the possibles causes can vary.

The main causes are

  1. connectors without strain relief (solution: retrofit serious cable management),

  2. the Z curly cable breaking internally after one year of use because it is not made for permanent motion (solution: retrofit serious cable management),

  3. the effect of EMI from the router on the unshielded :frowning: stepper motor cables (solution: retrofit serious cable management, replace EMI-emitting unearthed router by earthed spindle with fully shielded cabling and VFD in earthed control cabinet, finally: ground the machine correctly). Also besides shielded cables, snap-on ferrite cores can reduce EMI.

The manufacturer offers these Support FAQ documents for your issue:

Welcome to the forum!

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