Originally, CAD was all in 2D, making use of geometric shapes like lines, rectangles, arcs, and circles to create flat drawings. This approach is still used today, often including annotations on ...

For example, if you mostly do 2D CAD work, buying a high-end processor will most likely be a waste of money; a solid dual-core machine should suffice. For 3D work, the more cores the better ...

DraftSight 2D CAD software, which lets users create ... which provides lots of helpful information. For example, it links to a Getting Started PDF document, which teaches DraftSight basic features ...