title: export 3d object from website
body: <p>I'm so new at three.js and 3d. I want to create a 3d shape at my website and give some modifiable attributes, so user can modify some parts of this shape(I did this part). Now I want to give user a link to download this modified shape as file which can open at Blender or 3dsmax. I linger on this part. How can I develop such functionality?</p>
  
  <p>Thanks very much for your help</p>
  
  <p>Sorry for my bad English</p>