John Luciani wrote:
On Mon, May 3, 2010 at 12:49 PM, Tamas Szabo <sza2king@xxxxxxxxxxx> wrote:John Luciani wrote:On Mon, May 3, 2010 at 12:12 PM, Tamas Szabo <sza2king@xxxxxxxxxxx> wrote:My best idea is, that I do it by pads which have a zero width and a specified clearance. Unfortunately, those will have a rounded corner, so rectangular corner seems impossible (I can reduce the radius, if I make it from more pieces, but it never will be zero).A zero width pad may fail the DRC. Being able to specify keepouts would be a welcome addition to the footprint file format. I use the silkscreen to provide keepout hints. Not ideal but it works. (* jcl *)Thanks, could you show me an example?The two that I can think of right now are -- CON_USB_MINI_B__Molex_67503-1020 at http://www.luciani.org/geda/pcb/footprints-gif/Connector-gif.html IIRC the hashed area is a keepout (at least it has been all of my designs ;) For ANT_FOLDED_DIPOLE__Chipcon_2500 http://www.luciani.org/geda/pcb/footprints-gif/misc-gif.html The keepout is indicated by a single line. Just layout hints nothing fancy. (* jcl *)
Ok, I see now. I also plan to indicate the must-keep-free area on the silk.So unfortunately it seems that there is no any technique which avoid things like copper-pour to fill those areas:-(
By the way, thanks for your help and also the lots of footprints you share with us continuously:-)
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