I cannot determine where I should ask this question if here is wrong would you carry it to the correct forum? What does a "surface body" mean? What is it? "The Surfaces From Sketches feature allows the creation of surface bodies using sketches as their boundary." https://www.sharcnet.ca/Software/Ansys/17.0/en-us/help/wb_dm/dm_SufacesFromSketches3DMod.html Thank you.