I am designing a board using Altium Design 18.1 and I have just poured this GND polygon and itenter image description here looks so roughly is there any way to make it smoother?

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    \$\begingroup\$ Is this the Gerber? It may just render that way in Altium to reduce processing, but if you export to the Gerber it might still come out perfectly rounded. \$\endgroup\$ – DKNguyen Dec 1 '19 at 8:47

The "Arc approximation" value from the Polygon properties [ 1 ] is what you're looking for. Reducing this value will smooth your polygon arcs - don't forget to repour. Check the documentation for more information.

Side note: It's worth understanding that, based on your target PCB fabrication class and your manufacturer's process, it may not be relevant to have "absolutely accurate arcs": the etching process is somewhat rough. Finally it's a balance to find between file size and (needed) precision.

[ 1 ]

Polygon arc approximation


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