I wanted a simple (minimalist) dummy port for the J1772 EV charge cable but kept finding instead full recreations of all the internal plug connections. I did not need those because this is just a holder for the cable while it is not in use. I did not want an overly detailed internal design that would risk a poor fit if all of the individual connectors did not mate properly due to design or print tolerances.
The inside of this connector is mostly empty because nothing needs to be there. It just has the internal channel on the bottom and the latch receiver at the top. That is all that is needed to fit snugly. This was designed with two vertically aligned screw holes so that it can be securely mounted on a wall over a stud.
The only print supports that are required is a very small section for the latch receiver at the very top. Hope you get some use out of it and post your makes and comments.