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Licx
Associate II
January 2, 2024
Solved

stm32 nucleo-64 boards screw hole location

How to get the height difference of these two screw hole?

Licx_0-1704181456446.png

 

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Peter BENSCH
Peter BENSCHBest answer
ST Technical Moderator
January 2, 2024

There are several ways to determine the desired difference. One would be to read it from the GERBER data as recommended by @Tesla DeLorean. Another is to determine the difference from your screenshot, because all the values required for the calculation are given (typically, technical drawings do not specify each individual dimension, but use chain dimensions):

  • left hole:
    • CN8.6: Y = 0
    • CN8.1: Y = 0 + 5*2.54 = 12.7
    • CN6.8: Y = 12.7 + 5.08 = 17.78
    • CN6.1: Y = 17.78 + 7*2.54 = 35.56
    • left hole: Y = 35.56 + 13.97 = 49.53mm
  • right hole:
    • CN9.1: Y = 0
    • CN9.8: Y = 0 + 7*2.54 = 17.78
    • CN5.1: Y = 17.78 + 4.06 = 21.84
    • CN5.10: Y = 21.84 + 9*2.54 = 44.7mm

Difference = 49.53mm - 44.7mm = 4.83mm

Does it answer your question?

Regards
/Peter

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2 replies

Tesla DeLorean
Tesla DeLorean
Guru
January 2, 2024

Perhaps check Gerber Drill file under CAD Resources tab for product 

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Peter BENSCH
Peter BENSCHBest answer
ST Technical Moderator
January 2, 2024

There are several ways to determine the desired difference. One would be to read it from the GERBER data as recommended by @Tesla DeLorean. Another is to determine the difference from your screenshot, because all the values required for the calculation are given (typically, technical drawings do not specify each individual dimension, but use chain dimensions):

  • left hole:
    • CN8.6: Y = 0
    • CN8.1: Y = 0 + 5*2.54 = 12.7
    • CN6.8: Y = 12.7 + 5.08 = 17.78
    • CN6.1: Y = 17.78 + 7*2.54 = 35.56
    • left hole: Y = 35.56 + 13.97 = 49.53mm
  • right hole:
    • CN9.1: Y = 0
    • CN9.8: Y = 0 + 7*2.54 = 17.78
    • CN5.1: Y = 17.78 + 4.06 = 21.84
    • CN5.10: Y = 21.84 + 9*2.54 = 44.7mm

Difference = 49.53mm - 44.7mm = 4.83mm

Does it answer your question?

Regards
/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
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