4010 intake cone

My basic testing with a bowl of colored water seems to show an increase in airflow through my duct, however it does make a high pitch whine.

You will need 4 longer M2 x 16mm bolts, washers or nuts can be used to prevent the bolts from going too deep if needed. Just watch your wires.

Print both parts and clean up any strings or blobs that might rub against the fan rotor, place the spacer between the intake cone and fan to prevent friction between the parts.