I have designed an land pattern for a micro USB connector. The connector have 2 x 0.9mm drill holes under it.

The problem is the clearance distance around these holes being to big and overlaps the soldering pads for the very same connector.

These holes are just plain holes, I don't need the same clearance rules as for traces. Is there a way to override the automatic clearance and set them manually?

---- EDIT ---

enter image description here

As you can see, the hole clearance overlaps the pad on the top layer (red).

  • \$\begingroup\$ I'm sitting at my laptop... I will try to fetch the project and add a picture. \$\endgroup\$ Commented May 24, 2012 at 17:00
  • \$\begingroup\$ A datasheet link would be similarly useful. \$\endgroup\$ Commented May 24, 2012 at 17:02

2 Answers 2


Yes, this is done in the DRC settings. One of the parameters sets how far traces must be from board edges, which includes the edges of unconnected holes. I don't remember the exact setting name, but run "drc", look thru the settings, and you should be able to spot it.


You are saying you looked in the DRC but didn't find it. It's actually quite obvious and one of only two setting under the "Distance" tab:

  • \$\begingroup\$ I have checked the DRC settings at lest 100 times, nothing changes this clearance distance. When I think about it, I don't think it is in the DRC. The clearance area is marked in the Package editor, so it wouldn't know anything about the DRC. \$\endgroup\$ Commented May 24, 2012 at 17:21
  • \$\begingroup\$ No, this isn't the place. Nothing happens to the these holes when I change the above setting. These two holes are in the micro USB package, not added to the board in the PCB designer. In the Package designer the same clearance distance are shown, but no where to set it. \$\endgroup\$ Commented May 24, 2012 at 17:39
  • \$\begingroup\$ @MaxKielland can you edit the library part and change the setting on the hole properties directly? \$\endgroup\$
    – vicatcu
    Commented May 24, 2012 at 18:52
  • \$\begingroup\$ I got the answer from an EAGLE representative in the Element 14 forum. It is not possible... I upwoted you because you are on the right track... \$\endgroup\$ Commented May 25, 2012 at 0:10

I got the answer in the Element 14 forum for EAGLE. It isn't possible to just change a few rules, it is all dimension borders or none being affected. This is the answer I got:

The copper clearance from holes and the edge of your board is set in the DRC. (DRC>Distance>Copper/Dimension)You can reduce this to zero and the copper will fill right up to the lines marked in the Dimension layer. Then you need to check and address the issues that arise from this. The copper will be allowed right to the edge of the board which is not good practice so place a tRestrict bRestrict wires here to constrain the pour. The second thing you need to check is the solder stop top and bottom around the hole and the board edges. Milling and plain hole drilling is the last stage and keeping solder stop away from the cutter prevents chipping. HTH Warren
-- Viewed / responded via the newsgroup at news.cadsoft.de

Although, I didn't want zero distance, just a smaller distance. Anyway the procedure is still necessary if the distance becomes to short for the manufacturing process.


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