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Create electrically nonconnected Mounting holes inside a footprint

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  • Create electrically nonconnected Mounting holes inside a footprint

    Electrically not connected mounting holes for M3 studs can be created in PCB layout by using: Tools/Convert/Create board Cutout from selected primitives.
    I noticed the following:
    • The "Create board Cutout from selected primitives" works for one hole at a time. You cannot apply it to 4 holes at once.
    • The "Create board Cutout from selected primitives" is not available when creating a footprint
    • The radius of the holes cannot be set afterwards via properties. (The coords can be changed though)
    How can I create a hole in the PCB inside a footprint ?

  • #2
    I assume you want a non-plated through hole.

    Click image for larger version

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    Oh, and create a special rule for the solder mask expansion too.
    Click image for larger version

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    • #3
      Aha! Thank you!
      Documenting this here for later use:

      While in PCB editor I selected: Design/Rules/Design Rules/Mask/Solder Mask Expansion/SolderMaskExpansion
      Than I used the Wizzard to create a dummy rule which I edited afterwards with:
      • a name "SolderMaskExpansion_NonPlated" ,
      • a tag on "Solder Mask From The Hole Edge"
      • typing the magic words: (ObjectKind = 'Pad') And (Layer = 'Multi-Layer') And (PadIsPlated = 'False')

      Thanks again.

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      • #4
        You can also create a mounting hole schematic symbol with 1 pin + footprint and when you use it in schematic, do not connect the pin. That will create a mounting hole which is not connected to nets on your PCB.

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