Well it was more that recently chris gammell was designing a board, had it set to mils while doing his via’s (iirc) to break out the bga pads and using the specs listed on their site.
But the conversation from mils to mm introduced a rounding that just pushed him over the limits which then caused the automated DRC on the site to reject his board even though it was “in spec” according to the specs on the site (as they list both mm and mil).
And it’s not like you can just get them on the phone and get it nudged though even though some via are a few thousands of a mm out of spec but should be fine irl. The computer says no, so you gotta go back and redo a ton of traces, where a local shop running on higher margins will prob just push the order though after a brief phone call.
But the conversation from mils to mm introduced a rounding that just pushed him over the limits which then caused the automated DRC on the site to reject his board even though it was “in spec” according to the specs on the site (as they list both mm and mil).
And it’s not like you can just get them on the phone and get it nudged though even though some via are a few thousands of a mm out of spec but should be fine irl. The computer says no, so you gotta go back and redo a ton of traces, where a local shop running on higher margins will prob just push the order though after a brief phone call.