Please find a tools to create circular zone in pcbnew.
Select a component. This composent will be used as center of the
circular zone. If no component is selected, the origin (0,0) will be
used as center.
Select “Create a circular zone” in the Tools menu, choose the
radius and the type of zone (normal or keep out).
- A circular zone will be created. Select it to change properties:
- Refill the area (B hotkey) then the circular zone is ready.
This python plugin is available in https://github.com/jsreynaud/kicad-action-scripts