4 HDD bay with fan

I created this bay to house my hard drives in my TrueNAS server. It is designed to avoid the need for supports, and to use as few fasteners as possible. Requires only 8 threaded inserts (M3 x 5.7) to for mounting into the computer cabinet, and screws for the hard drives. 

Designed for 120mm fans, and is designed to mount the fan without screws. The hole for the fan is a solid body that can be printed without top and bottom solid layers to reveal the infill as a mesh. 

Print settings:

Front: 

Import front as one part containing two bodies. Main front is printed with 15% infill. Center hole is modified with no top and bottom solid layers. Chose the infill style and % you like.

Frame: 

Print with front down. No supports needed. 

Sliders: 

Use a brim - or the tabs may not be printed correctly due to its small dimensions.