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CAD Forum - tips, tricks, utilities, blocks | AutoCAD, Inventor, Revit, Civil 3D, Fusion 360, Autodesk
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CAD-Architect.net | CAD Blocks, Details and Drawings for AutoCAD
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Powerful and Affordable CAM Software | BobCAD-CAM
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IGE+XAO : Electrical CAD, PLM and SIMULATION software
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SolidWorks CAD, Stratasys 3D Printers, CAM, and PLM | GoEngineer
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CAD Blocks Free -CAD blocks free
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EDS Technologies