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Which of the following is the correct file extension for a 3MF file?

easy📝 Factual Q12 of 15
3D Printing - STL and File Preparation
Which of the following is the correct file extension for a 3MF file?
A.obj
B.3mf
C.stl
D.gcode
Step-by-Step Solution
Solution:

  1. Step 1: Identify common 3D file extensions

    .obj is for OBJ files, .stl is another 3D format, .gcode is for printer instructions, and .3mf is the extension for 3MF files.

  2. Step 2: Match extension to 3MF format

    The 3MF format uses the extension .3mf to distinguish it from other 3D file types.

  3. Final Answer:

    .3mf -> Option B

  4. Quick Check:

    3MF files end with .3mf [OK]
Quick Trick: 3MF files always end with .3mf extension [OK]
Common Mistakes:
MISTAKES
  • Choosing .obj for 3MF files
  • Confusing .stl as 3MF
  • Mixing printer code files like .gcode with model files

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