I'm glad to present you with the shelf for the top of your monitor!

Its legs are adjustable so that it will fit any monitor.

Print Advices: I'll advise you to print parts in those orientations as it is. Use supports for the screws. Also, use supports for the main body, but be sure to check the “only from the table” checkbox if you don't want to clean it from the inside thread (Threads are printing well without supports).

Enjoy! And don't forget to send me a print in comments ;)