40mm Fan Grill
thingiverse
You need a fan grill to accommodate fans like extruder cooling fans, specifically ones that are 40mm x 40mm x 20mm in size. There's one version that has only retainers, and another that comes equipped with two mounting holes. Print the fan grill using PLA at a 10% infill, but any material will work. Make sure to print it with the retainers facing upwards.
Download Model from thingiverse
With this file you will be able to print 40mm Fan Grill with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on 40mm Fan Grill.