I am currently designing a headgear and it is spherical in shape. I want to make cuts into the sphere of a certain depth but I need the depth to be uniform throughout the entire cut. Using the cut extrude feature I can make a curved cut but it isnt the same depth all the way through. Also I tried using the project curve fecture to project the drawing onto the sphere but then I can not use that feature to make the cut. I need some help any suggestions. I uploaded a pic of what I have done so far. I need those cuts to be the same depth from to bottom.