Ashlar-Vellum is offering a test-drive of Argon v4, a NURBS modeler that sports surface analysis and true solid modeling capabilities. Argon v4 is still in beta and will remain a free download until the software is released, a $100 commercial license discount is available during the beta period. Argon imports from and exports to many formats, including ACIS SAT, Pro/E, ParaSolids, IGES, STEP, DXF, DWG, EPS and AI.\t\t\t\t

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