- 100 2D CAD Exercises. - 50 3D CAD Exercises. - Each exercise can be designed on any CAD software such as AutoCAD, SolidWorks, Catia, PTC Creo Parametric, Siemens NX, Autodesk Inventor and other. - These exercises are designed to help you test out your basic CAD skills. - Each exercise can be assigned separately. - No exercise is a prerequisite for another.