Luis Roach writes: Turn a selection to a circle. In just on click you can change a group of vertices into a perfect circle. Useful for making cilindrical holes on every surface. https://www.youtube.com/watch?v=cyPdrnVXW_Y&ab_channel=MEDICCI
from BlenderNation https://www.blendernation.com/2021/05/04/convert-anything-to-a-circle-with-the-free-loop-tools-addon/
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