In a previous post I show you how to use the Mesh Section Sketch tool, in Fusion 360, to convert a STL into a solid body. This post will use the same tool to remove excess faces from a model by cleaning up the sketch it was created from. Often imported sketches or sketches which were created using excessive spline points will cause these excess faces. The process can be used as shown, starting with a sketch, or it can be used on a surface extrusion created from an existing model. In the short video you will see how simply and effective this method is.