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A 3D printed PETG part is tested for flexibility. Which result is expected?

medium📝 Conceptual Q4 of 15
3D Printing - Materials for 3D Printing
A 3D printed PETG part is tested for flexibility. Which result is expected?
AThe part breaks easily under slight bending
BThe part melts when bent
CThe part bends without breaking and returns to shape
DThe part crumbles into powder
Step-by-Step Solution
Solution:
  1. Step 1: Understand PETG's flexibility

    PETG is known for its flexibility and toughness, allowing bending without breaking.
  2. Step 2: Evaluate options against PETG behavior

    Options A, C, and D describe brittle or unstable behavior not typical of PETG.
  3. Final Answer:

    The part bends without breaking and returns to shape -> Option C
  4. Quick Check:

    Flexibility test = B [OK]
Quick Trick: PETG parts flex, don't snap easily [OK]
Common Mistakes:
MISTAKES
  • Assuming PETG is brittle like PLA
  • Thinking PETG melts when bent
  • Confusing flexibility with softness

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