In Eagle, I’ve created a custom footprint using through-hole pads with the green pad button in the library package editor.
It’s a simple 2 hole footprint.
I’d like these pads to be a diameter of 40mil with a drill size of 10mil, centers spaced 50mil apart. This leaves 10mil spacing between the pads.
Unfortunately, in the board layout, an extra 4mil is added to the diameter, thus reducing the spacing between the pads to 6mil and generating clearance errors when running the (Sparkfun) DRC, which requires spacing of at least 8mil.
Why is this extra diameter being added to my pads, and how do I prevent it?
I tried reducing the diameter to 38mil, but the problem was not solved. 6mil was added to the diameter of each pad, which created the exact same looking pad when I had it set to 40mil.
Help!
Thanks