Customizable Grommet

Customizable TPU grommet. Useful when you need to make a hole in a solid surface (e.g. wall, desk) for running cables through, but want it to look nicer than a bare hole and don't want other stuff (bugs, weather, crumbs, etc) getting through. By default the flange settings will be applied to both ends, but that can be overridden if you need an asymmetrical grommet. Generated grommet can be split in half along length or width to make printing easier and so you can actually squish the things i