FreeCad Refine shape Feature - How delete unnecessary lines after a Boolean operation
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How delete lines after booblean operations with openscad workbench and "refine shape" function.
From wiki freecad https://wiki.freecadweb.org/OpenSCAD_...
the function does not modify the existing shape, but returns a new shape
the function is normally used as last step in the modelling history
the function can help to get difficult fillets to work
the function is intended to stop 3D printers from printing unwanted edges
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