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After calibration, the printer's nozzle crashes into the bed at the start of printing. What is the most likely calibration error?

medium📝 Analysis Q7 of 15
3D Printing - 3D Printer Hardware
After calibration, the printer's nozzle crashes into the bed at the start of printing. What is the most likely calibration error?
APrint speed is too fast
BBed temperature is too high
CFilament diameter is set incorrectly
DZ-axis offset is set too low
Step-by-Step Solution
Solution:
  1. Step 1: Understand nozzle crashing cause

    Nozzle hitting bed means it is positioned too low, often due to incorrect Z-axis offset.
  2. Step 2: Identify correct option

    'Z-axis offset is set too low' matches this; others relate to temperature, filament, or speed, unrelated to nozzle height.
  3. Final Answer:

    Z-axis offset is set too low -> Option D
  4. Quick Check:

    Nozzle crash = Z-axis offset too low [OK]
Quick Trick: Nozzle crash means Z offset too low [OK]
Common Mistakes:
MISTAKES
  • Blaming bed temperature for nozzle crash
  • Confusing filament diameter with nozzle height
  • Assuming print speed causes nozzle crash

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