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â– Expression. Enter a mathematical expression to constrain the height of
the extrusion. See Create Geometric Relationships between Associative
Surfaces (page 381).
Create a Solid or Surface by Sweeping
Create a 3D solid or surface by sweeping a profile along a path.
The SWEEP command creates a solid or surface by extending a profile shape
(the object that is swept) along a specified path. When you sweep a profile
along a path, the profile is moved and aligned normal (perpendicular) to the
path. Open profiles create surfaces and closed curves create solids or surfaces.
See Overview of Creating Solids and Surfaces (page 342).
You can sweep more than one profile object along a path.
Options for Sweeping
When you extrude objects, you can specify any of the following options:
â– Mode. Sets whether the sweep creates a surface or a solid.
â– Alignment. If the profile is not on the same plane as the sweep path,
specify how the profile aligns with the sweep path.
â– Base Point. Specify a base point on the profile to sweep along the profile.
â– Scale. Specify a value that will change the size of the object from the
beginning of the sweep to the end. Enter a mathematical expression to
constrain the object scaling. See Create Geometric Relationships between
Associative Surfaces (page 381).
348 | Chapter 8 Work with 3D Models
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