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A PCB output file has the wrong units specified (inches instead of millimeters). What problem will this cause during fabrication?

medium📝 Formula Fix Q7 of 15
PCB Design - Manufacturing Output
A PCB output file has the wrong units specified (inches instead of millimeters). What problem will this cause during fabrication?
AThe PCB dimensions and hole sizes will be incorrect, causing fit issues
BThe PCB will be fabricated correctly regardless of units
COnly the silkscreen layer will be affected
DThe solder mask will not be applied
Step-by-Step Solution
Solution:
  1. Step 1: Understand unit specification importance

    Units define scale for all dimensions in output files.
  2. Step 2: Analyze impact of wrong units

    If units are wrong, all sizes and positions will be off, causing assembly and fit problems.
  3. Final Answer:

    The PCB dimensions and hole sizes will be incorrect, causing fit issues -> Option A
  4. Quick Check:

    Units mismatch = wrong PCB size [OK]
Quick Trick: Always confirm units before output [OK]
Common Mistakes:
MISTAKES
  • Assuming units don't affect fabrication
  • Thinking only one layer is affected
  • Ignoring unit settings in output files

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