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Odd Mounting Hole

budnoel

Hello - I need to create a mounting hole for a pin that requires two PTH's, a smaller one within the pad of a larger one.  I attempted to create a symbol using two padstacks and when I placed the second one I created a DRC error due to the overlapping of the two pads.  Anyone have any suggestions for how to create this symbol?  I've included a small section of the mfr dwg. to illustrate the issue.  Thanks in advance for any help.

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  • mcatramb91

    You could also add a property to the symbol called "NODRC_SYM_SAME_PIN" which will eliminate the Pin to Pin DRC errors when placing the symbol on the board.

    While inside of the Symbol file (.dra) perform the following:
     - Edit > Property and select Drawing in the Find by Name field then click the More button
     - Select "Drawing Select" to push it to the Selected Objects column
     - Select the NODRC_SYM_SAME_PIN from the list and Click Apply

    That's it.  You will still see the DRC errors in the symbol but once you place it in the board the Pin to Pin DRCs will be suppressed within this symbol only.  You can also apply it at the Board Level to avoid Pin to Pin DRCs for all symbol in the design, can be usefull when you have a larger Pin to Pin DRC on a Board design but you want it only to apply between pins on different symbols.

    Hope this helps,
    Mike Catrambone
    Plexus Engineering Solutions

Reply
  • mcatramb91

    You could also add a property to the symbol called "NODRC_SYM_SAME_PIN" which will eliminate the Pin to Pin DRC errors when placing the symbol on the board.

    While inside of the Symbol file (.dra) perform the following:
     - Edit > Property and select Drawing in the Find by Name field then click the More button
     - Select "Drawing Select" to push it to the Selected Objects column
     - Select the NODRC_SYM_SAME_PIN from the list and Click Apply

    That's it.  You will still see the DRC errors in the symbol but once you place it in the board the Pin to Pin DRCs will be suppressed within this symbol only.  You can also apply it at the Board Level to avoid Pin to Pin DRCs for all symbol in the design, can be usefull when you have a larger Pin to Pin DRC on a Board design but you want it only to apply between pins on different symbols.

    Hope this helps,
    Mike Catrambone
    Plexus Engineering Solutions

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