120 mm Fan Adapter to 51 mm (2") Flex Pipe

Simple connection for 120 mm fan to 51 mm flex ventilation pipe. Both sides are tangent for better airflow. The distance between the holes is 105 mm. Infill is not important, I have printed it with 0.6 extrusion width with 0.4 nozzle.

Note:

After trials I saw that airflow is not so good. Smaller inlet or outlet diameters for axial fan decreases airflow too much. If you have a chance to get a larger pipe, I would suggest so.