I always wanted an open PC frame for my linux machine. This one looks great.
Thingiverse link: https://www.thingiverse.com/thing:4816054 by Empiricus
Here is one build on Reddit:
https://www.reddit.com/r/3Dprinting/comments/p8nqhp/someone_printed_a_computer_case_and_itlooks/ by mafco77