See the follow file for details:  https://www.filedropper.com/filemanager/public.php?service=files&t=757744643cd3d3972ae382af4a4deb91 .  I create a spiral structure which is smooth and beautiful, then scale it up by a factor of 10.  Once it's scaled up, the geometry has changed. Can anybody tell me why, and if there is a way of avoiding it?  Thanks! 

[![operations][1]][1]
[![original_geometry][2]][2]
[![changed geometry][3]][3]
edit:  [![scale dialogue][4]][4]


  [1]: https://i.sstatic.net/cs3qG.png
  [2]: https://i.sstatic.net/jOkeU.png
  [3]: https://i.sstatic.net/yFzUd.png
  [4]: https://i.sstatic.net/jCfbQ.png