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Non-plated mechanical hole not following the spacing rule in Constraint manager.

TiffanyB

I'm using Allegro V17.4 for my layout. I assigned 10 mil rules for Hole and Thru pin away from Shape in the Constraint manager. But the backoff only came out to be 8 mil from GND shape. The shape and the non-plated mechanical pin for the connector don't have any special property tie to them. The padstack doesn't have Anti Pad or Kee pout assign to it and I do not have Route Keepout shape on top of the hole. Please advise. 

  • GilMay2
    0

    Hello Tiffany,

    I'm having the same exact trouble. Perhaps this is a bug?

    The work-around:

  • oldmouldy
    0

    "holes" are left by Pad Suppression, they are not Mechanical Holes. The Mechanical Hole spacing is controlled from the Constraint Manager, Analyze>Analysis Mode, Design, Mechanical Spacing and the default spacing value is 8 Mils, 0.203mm.

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