DRC errors with repositioned or removed components
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Perry Paolantonio 2 months ago
I'm getting a ton of DRC errors: One is that the auto-routed object clearances (such as vias that the auto-router placed) are wrong. I changed the DRC rule slightly and these went away (there appears to be a rounding error or something - it was telling me the via was 0.61234 or something like that, when it should be .61 (I forget the exact number it was reporting). Another, somewhat more concerning, is that there's incorrect clearance on holes and vias that don't exist. See this image. The yellow X is showing where it thinks there's a via, but as you can see, there is not. I think I had some manually placed vias there, which were wiped out by the auto-router when I repositioned things and ran it again. I'm seeing something similar with holes too, where connectors were, but were subsequently moved to another location on the PCB. I think it thinks there's still something there, but I cannot find any trace of the connector that moved. I have a bunch of these -- 4 connectors, each with 4-6 holes, were moved around. If there's nothing there, can I ignore this, or is it going to trip things up when I submit my order (which I'd like to do today)? I can't see any sign of anything in these locations, on any layer. <br> <br> ![Screen Shot 2021-07-13 at 09.36.38 AM.png](//image.easyeda.com/pullimage/tROSpF5iHf2L5BbkJnbRnJVSqrgztPHBBj0CcfxG.png)
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andyfierman 2 months ago
Make sure that you rebuild the Copper Areas (SHIFT+B) before rerunning the PCB Design Manager DRC.
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Perry Paolantonio 2 months ago
Aha! Thanks. That did the trick. Shouldn't that happen automatically as part of the auto-routing process though?
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Perry Paolantonio 2 months ago
Wait - sorry, I spoke too soon. I had something in the filter field that was hiding the errors. Even after rebuilding the copper areas, all the phantom holes and vias are still there.
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Perry Paolantonio 2 months ago
Ok, so turns out my bottom layer was locked. When I unlocked it, it suddenly revealed all of the phantom vias and holes, from before things were repositioned. Deleting those fixed the DRC errors: ![Screen Shot 2021-07-13 at 11.23.05 AM.png](//image.easyeda.com/pullimage/pb3tBixazE5MmrYUs7EUgvcZynnCN1xWasdHqjXk.png)
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