Why Do Supports Leave Scars?
Support scars happen when supports bond too strongly, interface spacing is too close, temperature is high, cooling is weak, or support density is exce...
Fast answer
Support scars happen when supports bond too strongly, interface spacing is too close, temperature is high, cooling is weak, or support density is excessive.
Look at the first failed area, the material, and the slicer profile before changing settings.
Check filament dryness, nozzle temperature, bed setup, belts, and the profile baseline.
Use a small calibration print so you can see which change actually improves the result.
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