Hello all !
Who can explain. How to fill the polygon without octahedron. I also require a minimal 0.15mm line forming the polygon as in the picture.
It was discovered when drilling required 0.1mm, 0.2mm, 0.3mm and 0.15mm thin line polygon
Regards,
Jeff
I don't have a solution. But why is it a problem?
I am interested in how to get rid of the octahedron. And why are they are formed only for the small size of the polygon line?
Since this problem is generated when you use components with a small step pins to pins and dense ICs, there is required a small diameter drilling 0.1mm 0.3mm.
When you are a beginner and used DIP parts, big size PCB it's no problem.
I'm curious why the cutout in the polygon must not be hexagon shaped with small via's.
It's simply the result of how Eagle fills a polygon.
Not six (hexa-gon) eight ( octa-gon) corners or sides. Strangely another if the polygon line is up than 0.15mm, the polygon on the circle. Or the hole diameter up 0.5mm, while also filling a polygon in a circle. I was looking for an opportunity but didn't find the settings.
Imho there's no solution. It's the way how Eagle fills a polygon.
Have you tried asking in the official Eagle mailing list?
http://eaglecentral.ca/
Hi Jefferson,
I hope you're doing well. Could you send me the sample file for review?
Send it to support@cadsoftusa.com.
Let me know if there's anything else I can do for you.
Best Regards,
Jorge Garcia
Autodesk Support
I don't find any solution. Keep us updated if you find any correct solution.
I still have not understood why this constitutes a problem for you. Why would it be problematic to drill a small hole (0.1mm) in the center? The drill diameter must be smaller than your pad, hence the hole will not get close to the octagon at all, right?
I've noticed this before, essentially Eagle creates the offset borders of polygon fills with lines rather than curved traces. In some circumstances, this is visible. On small vias, the result is impossible to distinguish from an actual circle. I've also seen this effect appear on large, sweeping curves; it seems to be triggered on a raw x or y division limit. Anyway, the reason for this is you could have thousands of tiny vias on a board, and making all the polygon holes smooth would require many, many tiny trace segments.
You should send this problem to eagle support team. They are the right person to understand your problem.