3508

Finishing Not Possible

Fanuc · Series 0i Manual Guide

What does 3508 mean?

This MC alarm (specific to Series 30i) indicates that the specified conditions prevent the successful completion of a finishing operation. This implies that the finishing program contains parameters or commands that are incompatible or insufficient for the desired outcome, risking an incomplete or incorrect finish.

Common Causes

  • The final surface requires a high degree of accuracy not achievable with current setup.
  • Tool wear has progressed to a point where finishing is compromised.
  • Previous operations have left significant irregularities.
  • Machining strategy does not support the desired surface finish quality.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Review the finishing program thoroughly to identify and correct any invalid or incompatible conditions preventing the finishing operation.

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Verified technical data. Last updated: March 2026

Related Faults

Source: Fanuc Series 0i Manual Guide