Laser Engraver Troubleshooting
Diagnose and fix the most common diode laser problems — each guide lists the likely causes in order and the exact fix.
Troubleshooting
Laser Engraving Looks Blurry or Fuzzy — How to Diagnose and Fix It
Laser engraving blurry or fuzzy? Diagnose the 5 causes: bad focus, loose belts, speed too fast, backlash, wrong line interval. Includes photo engraving settings for wood.
Laser Engraving Too Light or Not Dark Enough — 6 Causes and How to Fix Each
Laser engraving too faint or not dark enough? Diagnose and fix the 6 most common causes: power too low, speed too fast, defocus, dirty lens, wrong material, and low DPI. Includes…
Laser Engraving Uneven Depth Across the Workpiece — 5 Fixes
Laser engraving deeper on one side than the other? Fix focus height, warped material, frame leveling, and Z-axis issues with this step-by-step guide.
Laser Engraving Lines Shifting or Banding — 5 Causes and Fixes
Engraved lines shifting, ghosting, or banding on your laser? Fix belt tension, stepper current, acceleration settings, and USB interference with this diagnostic guide.
Laser Not Cutting Through Material — 5 Causes and How to Fix Each
Laser not cutting through? Diagnose and fix the 5 most common causes: speed too fast, power too low, wrong focus, dirty lens, and worn module. Includes settings reference table.
Laser Engraver Not Homing or Homing Error — 6 Fixes
Laser engraver won't home, triggers homing error, or homes to wrong position? Fix limit switches, GRBL settings, and motor direction with this diagnostic guide.
Laser Scorching Wood Too Much — 6 Causes and How to Fix Each
Laser burning wood too much? Fix heavy scorch marks and charred edges with these 6 diagnostic steps: speed, power, air assist, wood type, masking tape, and pass settings.
LightBurn Not Detecting Laser — 7 Fixes That Actually Work
LightBurn can't find your laser? Fix USB connection issues, COM port conflicts, missing drivers, and device config errors with this step-by-step diagnostic guide.