9 Downloadable computer software for pre-processing CAD files for 3D printing (additive manufacturing) including repair of CAD and STL models, 3D nesting, analysis, modeling, texturing, and creation of support and advanced lattice structures; Recorded computer software for pre-processing CAD files for 3D printing (additive manufacturing) including repair of CAD and STL models, 3D nesting, analysis, modeling, texturing, and creation of support and advanced lattice structures