<p>The <strong>FreeCAD 0.20 Black Book</strong> is the 3rd edition of our series on FreeCAD. This book is written to help beginners in creating some of the most complex solid models. The book follows a step by step methodology. In this book, we have tried to give real-world examples with real challenges in designing. We have tried to cover most of the topics utilized in industries for designing. The book covers almost all the information required by a learner to master the FreeCAD. The book starts with sketching and ends at advanced topics like Path (CAM), and FEM (Simulation). In this edition, we have added tools of addon workbenches like Sheet Metal, CFDOf, Assembly4, and so no. Some of the salient features of this book are :</p><p> </p><p><strong>In-Depth explanation of concepts</strong></p><p>Every new topic of this book starts with the explanation of the basic concepts. In this way, the user becomes capable of relating the things with real world.</p><p> </p><p><str