Hello there?i am have reads your description with carrefuly and i have check your file atcc,i very interested with your project,i can help you for make 3d modelling your bathroom sink in solid surface,i can send foirmat file you needs as STEP,IGES,X_T ready to CNC ,i will send good result and quick,please chat me and we can start right now,i hope we can work togheter and i am very happy if can help you,thanks