Ceiling fan model (help me to make this cut plz)

Ceiling fan model (help me to make this cut plz)

grabcad

Hii guys, can anyone tell me how to make this type of cut on curved surface like shown in image.

Download Model from grabcad

With this file you will be able to print Ceiling fan model (help me to make this cut plz) with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Ceiling fan model (help me to make this cut plz).