Bevan Weiss wrote: > If components must be mounted on the PCB with screws, then use pads. > Pads have holes, screws require holes, therefore screws may require > pads. Pads are the best option to use, they can have zero annular ring, > be marked as unplated and untented. > > If you only need holes then just set the pad size to 0. Have the hole > size as necessary.
I prefer to set the pad size for mounting holes to match the diameter of the screw head or other hardware - this ensures that I can't put a track under the screw head, where it might get damaged, or shorted to ground. (And, with a pad size of zero, Protel may allow you to place a track _across_ the hole, which wouldn't be good...) -- Peter Bennett TRIUMF 4004 Wesbrook Mall, Vancouver, BC, Canada V6T 2A3 Phone: 604-222-7456
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