Re: gEDA-user: Clearance in polygons

2006-09-27 Thread DJ Delorie
> This makes me nervous. > My fab requires 6 mil minimum distance. I routed my board with > clearence=10mil on all route styles. Yet, the DRC feels fine with > minimum copper distance set to 6 mil... > > Just measured with the help of [ctrl-m]: 6 mil clearance translates to 6 > mil gap from coppe

Re: gEDA-user: Clearance in polygons

2006-09-27 Thread Peter Baxendale
Now I'm confused. I've ended up with some of the tracks showing a polygon clearance of 10 mil (in an object report) whilst others show 5 mil. After a little experimentation it seems that if I draw a track manually using the "signal" style (with "clearance" set to 10 mil and line width set to 10 mil

Re: gEDA-user: Clearance in polygons

2006-09-27 Thread kmk
DJ Delorie wrote: > That's it. Note that "clearance" is defined as "what you add to > thickness to get the cut thickness". I.e. for a 5 mil gap, you need a > 10 mil clearance. For a 6 mil gap, you'd need a 12 mil clearance, > etc. This makes me nervous. My fab requires 6 mil minimum distance.

Re: gEDA-user: Clearance in polygons

2006-09-27 Thread kmk
Peter Baxendale wrote: > Where is this default clearance set? Under Route Style there's just a > clearance, set at 10 mil. The Route Style dialog refers to the current style. Chose a different style and Route Style dialog will allow you to change its default properties. > Couldn't see any refer

Re: gEDA-user: Clearance in polygons

2006-09-27 Thread DJ Delorie
> Where is this default clearance set? Under Route Style there's just > a clearance, set at 10 mil. That's it. Note that "clearance" is defined as "what you add to thickness to get the cut thickness". I.e. for a 5 mil gap, you need a 10 mil clearance. For a 6 mil gap, you'd need a 12 mil clear

gEDA-user: Clearance in polygons

2006-09-27 Thread Peter Baxendale
Having tracked a board, I see that tracks generated using "signal" route style have a clearance in polygons of 5 mil whilst those with "power" style have 10 mil. Where is this default clearance set? Under Route Style there's just a clearance, set at 10 mil. Couldn't see any reference to polygon cl