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You start with current width of wires and after placing or changing direction eagle switches to width set in net classes.


Tyler mentioned this - don't know why he didn't frame it as an answer. But it's basically multiple layers on the board, at least for commercial applications (not hobbyist). Pretty much everything we do now is 14 layers minimum, up to 40 layers or more. Yeah, they're thick! At least 2 return planes, 6 or 8 routing layers, and no circuitry on the top & ...


Wirewrapping - this box was all wirewrapped for connections. LEDs were soldered in place, didn't make sense for sockets for those. And then I wirewrapped right to the LED legs, which are square pins. 8 conductor cables (Dupont-style crimp housing headers with female-female wires) were made up to connect from the back of the card in the middle (what looks ...


The classic layout technique with double-sided boards that mostly contain DIP packages is to run traces (primarily) vertically on one side and primarily horizontally on the other. Power is routed first to keep the traces low inductance, and bypass capacitors are placed at every chip, usually. Typically the power pins are at the corners. That technique is ...

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