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A user manually edits G-code and writes M104 S-10. What is the likely result?

medium📝 Analysis Q7 of 15
3D Printing - G-code Fundamentals
A user manually edits G-code and writes M104 S-10. What is the likely result?
AThe printer sets extruder temperature to 10°C
BThe printer ignores the negative value and uses default
CThe printer throws an error or ignores the command
DThe printer heats to -10°C (cooling mode)
Step-by-Step Solution
Solution:
  1. Step 1: Understand valid temperature values

    Temperatures cannot be negative; negative values are invalid.
  2. Step 2: Predict printer response to invalid temperature

    Printers usually throw an error or ignore invalid commands to prevent damage.
  3. Final Answer:

    The printer throws an error or ignores the command -> Option C
  4. Quick Check:

    Negative temperature = Error or ignore [OK]
Quick Trick: Temperature values must be positive numbers [OK]
Common Mistakes:
  • Assuming negative values convert to positive
  • Thinking printer cools below room temperature
  • Believing printer defaults silently without warning

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