This print has been realized on a Prusa i3 MK3S with the following settings:
For the base :
At the time of creation print time is around 22h for this piece.
For the fan handle :
At the time of creation print time if around a few minutes.
For the fan top :
At the time of creation print time if around a few minutes.
NOTES :
For some printers accuracy might hinder assembly and down-scaling of the fan parts might be handy.
You can also trim the edges after print to fit the holding places.
If the match is nicely done, no glue should be required for assembly. (See below)

The author hasn't provided the model origin yet.