The Tesla Charger Connector Dock is a remix of AdaFruit's Tesla Cable Holder, modified to provide a mounting plate instead of a clip.
The holes in the mounting plate are designed to align with rack mount holes that are 1.5" apart. They are 6" (152.4mm) apart and fit m6 screws or bolts.
The Fusion 360 source file is included.
Arrange the part on your printer so that the mounting plate is flat on the print bed with the dock facing up, as shown in the photo.
I used a 0.1 layer height and a 20% infill with 4 top, 4 bottom, and 4 perimeter layers.
Supports were required; I set the support infill percentage to 30% to ensure that they were easily removed.