books.google.fr - DraftSight is a free, two-dimensional Computer Aided Design (CAD) program that can create, edit and view DWG files. DraftSight is a fully featured, free alternative to other, more expensive 2D CAD software packages.The primary goal of Exploring DraftSight is to introduce the aspects of Engineering...https://books.google.fr/books/about/Exploring_DraftSight.html?id=vRdLfvhOzMEC&utm_source=gb-gplus-shareExploring DraftSight
