Okay so I am really new to CNC I haven't even made a cut yet, I am setting my limit switches tonight and zeroing the machine, but I was working on exporting my designs from Inventor to Visual Mill and VM will not load the DWG standard CAD file. It works when I export my drawings as STP file for Solid Works. I was just wondering why it does that, its really not big deal but I was wondering why it was doing that. If I can get some feedback that would be great.