This is a 120mm fan cover, mostly common in computers. Like the million others out there, it protects the fans from foreign objects and your fingers from its blades. This design tho, also allows to swap grille colors and designs without unscrewing it plus when covering two or more fans together (as in computer radiators), it sprawls an overlapping design to make it seem like a seamless unit.
Features:
Here's what you need for each configuration:
I created FanSwap as a way to mod my PC, what I wanted was not available and what I liked was way too expensive (CNC machined aluminum covers, anyone?), also the pain of changing the cover in a tight case, specially on radiators where the fan also comes off the same screws. Also, why did double and triple radiators never looked like a single cohesive unit?
I'm very particular about things and spent quite some time designing, printing, fitting, redesigning, adding/removing features, adjusting tolerances, wall thicknesses, etc. and I didn't think I could make a reasonable profit out of this so here it is, free and public for you, hopefully my effort goes further than just fulfilling my needs, I do appreciate feedback greatly, thank you for reading this far!
Get insight on the design thought process here: FanSwap, Customizable Computer Fan Cover | L21 Degrees of Awesomeness
REMIX UPDATE: Added grille blanks in .STEP format, one fully solid so you can cut your own design and one hex pattern only so you can extrude your design on. These six designs are inside the FanSwap REMIX STEP grille files.zip file
The author marked this model as their own original creation.