Happy New Year everyone, On the topic of courtyard shapes, I think that a lot of people totally misunderstands the purpose of it. It is only intended to be used as a no-fly zone for the tools used by automated placement machines. So the use of arcs for corners is useless at best except for a full circle around an electrolytic capacitor, and even there a square would work fine for the intended purpose. Why complicate things when simple convex polygonal shapes will do the job. Just my opinion though, and i used placement robots for many decades. Jean-Paul
Sent from Yahoo Mail on Android On Tue, Jan 1, 2019 at 11:58 AM, Rene Pöschl<[email protected]> wrote: Hi, Right now we have a few contributions for the library that use arcs quite extensively on the courtyard layer. I would therefore like a bit of input. Are arc generally more expensive than lines? Is there a difference if the arc is a multiple of 90 degree compared to any other angle. Is there a difference if the endpoints of two neighboring endpoints meed exactly vs they being within the tolerance range for counting as a closed outline (If i remember correctly then the tolerance was 0.01mm. I assume this is the radius of the tolerance circle.) Regarding tolerance: How stable will the currently chosen value be? (If we allow arcs on the courtyard layer then we will need to fix a tolerance in the KLC. This is especially the case for arcs that are not 90 degrees.) The two pull requests that are responsible for this question: - https://github.com/KiCad/kicad-footprints/pull/1040 - https://github.com/KiCad/kicad-footprints/pull/1159 _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : [email protected] Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
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