[CNC router]

beware dxf converting cuves to line segments, have had luck with eps if your controller will take them

[hidden line rendering facets]

I do many isometrics as well as perspective renderings using hidden line rendering. I have spent days of my life deleting the facet lines on curved extruded surfaces much client $$$$$$$$$$$. please have facet lines render as a different type so they may be selected as a group by color line wieght or style and deleted.