Offtopic » is it something else?

Hello,

I am trying to load a drawing into sheetcam, using dxftool from CorelDraw 5, I am still getting double lines. Why is this?
Would increasing nodes or decreasing nodes in a drawing help prevent this? Or is it something else?
Getting ready to make my first cut tonight and I'd like to eliminate drawing issues first??

Please help.

I didn't find the right solution from the internet.

References:
http://www.plasmaspider.com/viewtopic.php?t=10831
Demonstration Video

Thank you.