1.Original nesting software, 2. Best price, 3. Professional technical support FastCAM software has four modules for CNC cutting:FastCAM drawing module: 1) Draw: similar with CAD, to draw all kinds of parts2) CAD compatible and Optimizer: to read in and optimize DXF/DWG files by delete, compress, extract, explode 3) Cutting functions: Kerf compensation, plasma bridge, common line cutting, corners, ...