This is the reader for the CATLearn Suite of CATIA (CAD) training courses. Its comes free with the V4 Advanced Surfaces for Solids course. The SURF2 command in CATIA V4 is now explained in plain English. Learn the SURF2 command in two days. Learn how to create and manipulate complex surfaces, create conic fillets, and then incorporate them into your solids to create solids you did not think were possible. Other courses available at CADutils.com: V4 to V5 Modelling Basics; V4 to V5 Drafting Basics; V4 Advanced Solids.