We talked about this on IRC and I promised Peter I'd redo the math and example for him... http://www.delorie.com/pcb/neck-down.pcb This example was done manually, with paper, pencil, and a calculator. No plug-in yet, sorry! _______________________________________________ geda-user mailing list geda-user@xxxxxxxxxxxxxx http://www.seul.org/cgi-bin/mailman/listinfo/geda-user