Modular 1U Relay Rack Mount for (18) Keystone Jacks with STEP file

This was originally posted on Thingiverse, but due to issues editing my designs there, I am moving it here.  The description below is mostly the original with some edits to help with crediting sources and stuff like that.

These are 9 port keystone jack receiver modules for my 1U modular relay rack mount. These can be used with the other modules, which hold switches, or on their own, and require the center module in the original design here:

https://www.thingiverse.com/thing:3690500

I used the Keystone Jack receiver model based on MWU's thing here:

https://www.thingiverse.com/thing:548145

I also used pyr0ball's (@ Thingiverse's) remix of MWU's model (converted MWU's model to STL), to help design this. https://www.thingiverse.com/thing:548145

These need to be oriented for printing. I printed it in 0.25mm resolution with tree supports. I used the support blocker feature in Cura to avoid supports above the first 12mm of the print where they are not needed.

This printed fine, and installed has been working well. I did have a small sag in the center which you can see in the pics which I suspect could have been fixed if I had glued the parts together before, but I only used the screws. It may also be due to a disassembly/reassembly I did of the unit after it was built which could have loosened the joints. In any case I am happy with it and it seems plenty strong. Mounting a blank cover or another steel panel below it would lend support to the plastic printed part and avoid any sagging, but in my rack this is currently the bottom shelf. The keystones fit well and stay in place. I am using the keystone jacks shown in the pics.

Update 2-21-2020: Check out reibuehl's (@ Thingiverse) remix of the door for a simpler and easier to install (hardware free) door option:
https://www.thingiverse.com/thing:4382663

Update 3-19-2021: If you are looking for a full 1U mount for just keystones, check out RTWILEYRC's (@ Thingiverse) remix below, it accommodates 22 keystone jacks and looks great:

https://www.thingiverse.com/thing:4612299

Update 5-19-2022: Added the files for the center compartment and door so they don't need to be found separately.  Also added the STEP file.