Square holes in PCB. (Or slightly curved edges.)

Ernst Jan Verbree asked Aug 27,2024

Hi,

I'm drawing a pcb that has 2 small square holes in the middle.

I have a few amateur questions about how I should draw them to avoid engineering issues later on.

I was wondering if I should draw them with small curves on the corners.

(To take drilling into account). (And if so, what would be the best radius to approximate a square hole without driving the price up?)

Or if I should simply draw them square.

Regards,

Ernst Jan

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