This program reads 2D mechanical drawings of parts to be fabricated
 and produces G-code tool movement instructions for running on automatic
 machine tools (CNC machines) such as milling machines and lathes.
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 This is a graphical CAM (Computer Aided Manufacturing) program.
 It accepts input in DXF, PDF, or Postscript format. It supports milling,
 drilling, and turning operations, as well as work-holding tabs.