This is a duplicate of original model from here:
Here is my first version of Nova mount for Creality CR10 printers and similar. It is a beta, so try it at your own risk, but please do. I will be looking for your feedback when improving this mount, especially about tolerances, since I do not have this printer in possession to check it. I will update this design very soon with a part fan mount, this will release with V0.91.