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To fillet or not to fillet on a PCB pattern

2014-07-28 by hudakjm@...

I was wondering how many of you folks use fillets in your PCB patterns where two traces, or any two edges for that matter, meet at 90 degrees.

I was looking at some commercially produced patterns and they seem to frequently employ fillets. This is I presume to prevent cutting in of the pattern at 90 degree corners when the board is etched. For a pattern produced on a computer it's easy enough to add them in. Would it make any difference if one is using the toner transfer method?

Thanks in advance for your comments.

John


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