What is the best program to create dxf files for laserweb?

What is the best program to create dxf files for laserweb?
When i use solidworks i get strange cutting paths with points and etc

Good advice here https://plus.google.com/+PetervanderWalt/posts/diPdU16RWAM

I use these days Sketchup and the following plugging gives me perfect output http://www.guitar-list.com/download-software/convert-sketchup-skp-files-dxf-or-stl

If i need to fix something i use Rhino