During the "CAD Compress", there was a call for "Max line length to round" and the number 472. Does it mean that all the entities with the corresponding length that is less than 472 will be joined together as single entity? What about the "Max. shape divergence".
If this sounds like you, please check the Cad Compression guide here:
http://response.fastcam.com/knowledge-base/article/how-to-use-cad-compress