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mechanical alignment hole not showing properly in 16.5 PCB Editor (look ok in 3D view)

mfris

Hi everyone,

Amateur user here.

I created a couple of footprints with mechanical alignment holes that go through the PCB (I also created the padstack that defines the holes).  As far as I can tell, everything looks fine for the various holes while in the footprint editing mode.  When I bring the parts into PCB Editor to place the part, I can see a shape in the area where the holes should be, but none of the shapes are the right size and I'm able to route in the area without a DRC.  When I switch to the 3D view, the hole shapes appear to be the right dimensions.

 Any thoughts on what I need to do differently to get the holes to show up in PCB edit mode?  Thanks in advance for any help.

 Best regards.

  • steve

    It sounds like they are defined a mechancial holes without a pad. The color is defined under Display - Color Visibility Display folder, set something other than black as the color for drill holes. To get the DRC modes to work you need to enable it. Got to Setup - Constraints - Modes - Spacing Modes and make sure all the Hole to items are checked. Ideally everything in that list should have a tick. Then you should see the DRC's when routing. Make sure your drill hole size is set correctly in Pad Designer.

  • Ron Scott
    Try this out. It sometimes slips peoples mind. Go to Setup-->Design Parameters Editor and see if you have "Display Non-Plated Holes" selected HTH Ron Scott
  • mfris

    Ron and Steve,

     Thank you both for the quick reply.  In my case, going to Setup->Design Parameters and slecting "Display Non-Plated Holes" resolved the issue of not seeing the hole.  Setup -> Constraints -> Modes gave me the view to turn on the DRCs. 

    Thanks again for the help!!

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