Exercise 2D to practicing some commands in AutoCAD, the example helps students become familiar with the tools circle; matrix, copy, shading, etc. cut. the drawing is very well explained, with good quality and can be modified.
Drawing labels, details, and other text information extracted from the CAD file (Translated from Spanish):
To draw using arcs arrays matrix symmetry degraded, Drawing: homework, scale:, Author:, Volume: initiation
