Mr. Claus Abt 14 Report post Posted April 21, 2013 The variety of STL-formats seems to be rather large. That's why we decided to offer a set of exports, successfully tested with a couple of imports of Meshing tools or CFD packages. Now, it is not only the format which makes a suitable STL file, but also the topology of the facets. In CAESES/FFW you have the possibility to choose from two different approaches: Based on an error function and based on the surface parameterization. Since CAESES/FFW is mostly used for complex curved geometries, the error based method is the default one. To change this, select one or more entries in the list of of surfaces and click the edit icon next to the name (in case of multi selection below the last entry). Then toggle override defaults and the surface parameterization will be used.In the picture attached, the left volute geometry is based on the error based method, while the other displays the parameterization based type. Share this post Link to post Share on other sites