On Sun, 2008-08-31 at 00:27 +0000, Kai-Martin Knaak wrote: > pcb will tolerate a linewidth set to to zero. A few months back I did > zero width pads with large clearance to expose some copper text. The fab > did not complain and the mask contained holes as expected.
Copper text (with mask) is cool - something it would be nice for PCB to support. (By this, I think I mean the same as KMK - the copper is solid, but the mask is cut away with the lettering). An undergraduate designed a board for a PWM inverter on a lab course I was demoing, and he used this technique with Altium. Very cool I thought, and have used it myself since. (Our in-house process has no slik, but can do mask). It would be nice for PCB to support text on mask layers (when the arbitrary mask-layer contents work is done). In my case, I didn't care about the solder-paste stencil getting the text too. I just traced over the text I wanted with pads, called them all "1" and saved as a footprint. I explicitly wired a dummy component with the footprint matching into schematic's ground plane. As it happened, the fab appears to have removed the text from the solder-mask before producing it. -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!) _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
