Attached is a screenshot of what I am trying to accomplish. I created a macro that translates and rotates a block (male profile) 600 times to create a smooth female imprint. Unfortunately Solidworks crashes every time I draw a line (indicated in red) to close the profile and try to extrude the inner profile. Does anyone know of a method to extract the inner shape, 2D or 3D, with a sketch of 600 entities? My current method is time consuming. I spend a few hours tracing it with a spline.