So you can look at the board, or click on the error message in the 'DRC Errors' dialogue and Eagle will show it you may need to double click the error to cause Eagle to shift the offending area into view.Ĭonfirm which layers are causing the problems by switching off layers, a couple at a time, and then running the DRC checks each time.

Eagle highlights the overlap area of every error. Look at each of the errors, and you will probably see layers are causing the errors. The first thing to do is figure out which layers are causing the errors. You could try to fix them by adjusting values in there, but if this is for an Open Source design, you might want to fix the errors instead. IIRC the part of the DRC dialogue which sets some of these values is the 'Masks' tab. However, I tend to fix them all so that I am confident that my boards can be made by any manufacturer (as I do Open Source designs). These errors are sometimes okay, as many PCB manufacturers run a process which 'trims' the silkscreen so that nothing is printed onto top or bottom copper.

They are layers which you might reasonably include on the boards silkscreen (during the CAM process), so Eagle treats them as if they are part of the silkscreen if they are 'Display'd when the DRC check is run. something which extends beyond the top or bottom stop layer, and which is not a component pad or copper. As you probably understand, the errors are caused by something in a layer which prints onto top or bottom copper.

Eagle 7.7.0 license file