title: Convert .OBJ file to STL using FreeCAD python
body: <p>I have been working on a project to convert CAD files from different formats (OBJ, FBX, COLLADA, 3DS, IGES, STEP, VRML/X3D) to STL. Recently, I posted <a href="https://stackoverflow.com/questions/55714806/convert-step-file-type-to-stl/55732964#55732964">this</a>
  question on stackoverflow to convert STEP file to STL format and was successfully  able to do so. Right now, I am working on converting an OBJ file to STL format using FREECAD and Python. Are there any python examples to convert OBJ to STL so that I know where to start and how to proceed?</p>