Autodesk 057A1-09A111-1001 - AutoCAD LT 2009, User Manual, Page: 107 / 414

Designing Levers
In this tutorial, you start with a lever inserted from the parts library, and then you refine the
design using many of the design options available in AutoCAD
®
Mechanical. You also create
a drawing detail and add dimensions to it.
Key Terms
Definition Term
Lines, which are infinite in both directions or rays, which are
infinite starting at a point that can be inserted into the drawing construction lines
area. You use construction lines to transfer important points
(for example, center points of holes) into other views or
drawing areas.
A line or an arc created with construction lines. Using construc-
tion geometry in 2D drawings helps define the shape of a
contour. construction geometry
A portion of a design drawing that cannot be clearly displayed
or dimensioned in the overall representation but can be en-
larged to show the details. detail
To give the dimensions in a drawing a uniform appearance,
Power Dimensioning and Automatic Dimensioning enable distance snap
automatic insertion of the dimension line at a defined distance
from the object being dimensioned. While dragging the di-
mension line dynamically, you will find that it remains “fixed”
5
99