Datasheet

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Part I: Introducing SolidWorks Basics
You can use 3D sketches for the Hole Wizard, routing, weldments, and complex shape creation,
among other applications.
Cross-Reference
For more information on 3D sketching, please refer to Chapter 6.
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For a simple example of working with sketch relations in a 2D sketch, consider the sketch shown in
Figure 1.19. The only relationships between the four lines are that they form a closed loop that is
touching end to end, and one of the corners is coincident to the part origin. The small square icon
near the origin shows the symbol for a coincident sketch relation. These sketch relations are persis-
tent through changes and enable you to dynamically move sketch elements with the cursor on the
screen. The setting to enable or disable displaying the sketch relation symbols is found at
View ➪ Sketch Relations.
FIGURE 1.19
A sketch of four lines
If you drag any of the unconstrained corners (except for the corner that is coincident to the origin),
the two neighboring lines will follow the dragged endpoint, as shown in Figure 1.20. Notice the
ghosted image left by the original position of the sketch. This is helpful when experimenting with
changes to the sketch because you can see both the new and the old states of the sketch. The setting
to enable or disable this ghosted position is found at Tools ➪ Options ➪ Sketch ➪ Ghost Image on Drag.
FIGURE 1.20
Dragging an endpoint
If you add a parallel relation between opposing lines, they now act differently, as shown in Figure
1.21. You add a parallel relation by selecting the two lines to make parallel and selecting Parallel from
the PropertyManager panel. You can also select the Parallel relation from the context bar that pops up
in the graphics window when you have both lines selected.
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