Designed this to fit two 3.5" Hard Drives and be bottom mounted. Design has space for 4 6-32 nuts. you will need some long 6-32 screws to secure things properly.

This was useful as Seagate has moved the bottom screw locations from standard layout and my Asus case would not properly secure the drive.

Creality

Ender 3

Yes

Yes

40

You will work to print with Supports, I chose Tree option has to save a significant amount of material.