Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:6277299.

Slide in-out under desk mount for the 61W USB-C power block that came with my Apple Macbook Pro 13-inch 2020

Print with the opening at the top, and use supports.

07-SEP-2023 V1.1 Added a new revision with a slightly thicker shell as I found the first version was a bit brittle and the mounting point could fail/break.