A 48mm cable grommet with 3 different tops for cord management. Each grommet top has groves that locks into place and can turn within the main structure.
MAIN GROMMET: Print the file "48mm Desk Grommet (open).stl" with supports and rafts. The placement of the object in your splitter should build from the bottom up (see supplied image). Will need some small cleanup, however the groves will print cleaner this way.
GROMMET TOPS: Print tops upside down with and no supports or rafts needed.
Print from bottom up with supports and rafts.