I want to create a sketch (shape) of *.stl(PART_2) file on top surface of *.sldprt (PART_1) file. STL fle could be differ every time. Suggest me a procedure for this exercise.

I want to create a sketch (shape) of *.stl(PART_2) file on top surface of *.sldprt (PART_1) file.  STL fle could be differ every time. Suggest me a procedure for this exercise.

SolidworksDrawings And Detailing