PCB step export with option to uniformly widen holes and windows.
3D printing has advanced to such a stage it is possible to print stencils to perf boards and do some component fitting checks before sending off to manufacturing.
It helps if each hole, or window, slot etc can be uniformly widened by say 0.1mm before step export in PCB to allow for 3D printer nozzle width.
I did manage to do this in a roundabout way by importing gerber into flatcam and doing an isolation mill operation, but when I imported gerber back into KiCAD it had rounded the rectangular windows by adding rounded edges with the 0.1mm offset. That was OK but trying to export that new PCB as a step file takes infinite amount of computational time. So please no rounding of rectangular windows.