To match the skirt with the Midpanel with Hex Pattern by sterminatore's idea
Left and right skirt part with 40 degree chamfers for color change printing. There is an extra hole for tightening the middle M3 screw.
Empty nameplate for serial number. For example, with Tinkercad you can easily put the number on it.
Here's a quick tutorial:
SSR holder with led window.
12mm x 19mm windows for power switch.
Adxl connector, 6P microfit 3.0: https://www.digikey.com/en/products/detail/molex/0430200600/252492