95 mm Fan Guard

thingiverse

Print it with approximately 10 percent infill, perimeter widths at two millimeters, and no top or bottom layers. To install simply slide it over the fan. Update 2018-10-21_14:18 The initial version functions smoothly when the fan is blowing downwards. However, when operated sideways or blowing upwards, the fan may come into contact with the fan-guard due to a small amount of play, producing an unpleasant noise and slowing the fan down significantly. I made a minor modification to the design adding an extra clearance of three millimeters. This change also resulted in the guard becoming more rigid, allowing the claws to hold much better than before.