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AutoCAD 2013 and AutoCAD LT 2013: No Experience Required
book

AutoCAD 2013 and AutoCAD LT 2013: No Experience Required

by Donnie Gladfelter
June 2012
Beginner content levelBeginner
1104 pages
25h 3m
English
Sybex
Content preview from AutoCAD 2013 and AutoCAD LT 2013: No Experience Required

CHAPTER 6

Using Layers to Organize Your Drawing

Before the age of computers, drafters used sets of transparent overlays on their drafting tables to compose document sets of multiple disciplines. Each design discipline such as architecture, electrical, plumbing, and HVAC were drawn on an individual overlay. Each overlay had small holes punched near the corners so the drafter could position the overlay onto buttons, called registration points, that were taped to the drawing board. Because all overlays had holes punched at the same locations with respect to the drawing, information on the set of overlays was kept in alignment. Thanks to this tight integration, plan sheets were more easily produced since it was not necessary to redraw individual ...

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Publisher Resources

ISBN: 9781118281741Purchase book