Solving CNC machine related problems.
Top 5 CNC Machine Problems and Solutions
Poor Surface Finish:
Cause – Dull tools, wrong speed/feed, loose setup.
Fix: Replace dull tool, tighten fixtures, reduce spindle speed, and shorten tool overhang.
Tool Breakage:
Cause – Wrong feed/speed, poor coolant, weak clamping.
Fix: Set correct parameters, ensure coolant flow, use rigid holders, and secure workpiece properly.
Dimensional Inaccuracy:
Cause – Wrong offsets, thermal drift, backlash.
Fix: Recheck tool/work offsets, allow machine warm-up, adjust backlash, and verify fixturing.
Positioning or Homing Errors:
Cause – Encoder or servo fault, cable looseness, binding.
Fix: Inspect cables, clear chips from slides, reset alarms, and test axes slowly for smooth motion.
Spindle Overheating or Power Loss:
Cause – Blocked coolant, bearing wear, or VFD issues.
Fix: Clean coolant lines, replace filters, check lubrication, and inspect spindle bearings.
Preventive Tips:
Clean chips daily, monitor coolant, check runout, tighten tooling, and back up CNC parameters regularly.
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