title: Create 3D model of text with rounded/filleted or beveled corners
body: <p>I am trying to programmatically create the 3D model of text with beveled or rounded corners. See the following image for an example.
  Another requirement is speed. It should be possible to create a model for a 10 letter word in less than 10s.</p>
  
  <p><img src="https://i.stack.imgur.com/WwPMh.png" alt="enter image description here"></p>
  
  <p>OpenScad is to slow. </p>
  
  <p>I also tried Freecad, but the Freecad filleting algorithmus (which is from Opencascade) requires that the shortest line of a glyph is longer than the fillet radius. This would exclude nearly all fonts.
  With freecad I also tried to create rounded corners by sweeping along the glyph paths with a profile. While the results did look good and speed was ok I was not able to create a valid solid out of it.</p>
  
  <p>Are there any other libs to do this job? Is there a library to smooth corners in a mesh? 
  Python as language would be preferred, but I would use anything else also.
  As output format anything which can be converted to STL would be fine.</p>