Can Corel Draw remove vectors that overlap. Vectors that are pretty close to the same size and position or even vectors that duplicate a path. I am working on a CNC machine using Corel Draw as the design software and duplicate lines are duplicate efforts.
this might work for you, and it's free:
http://macromonster.com/product/shelbys-superstitch/
also check this thread: Remove Underlying duplicates
https://forum.oberonplace.com/showthread.php?t=8071