Extrude
A 3D modeling command that gives a 2D profile height or depth to create a solid or surface.
The Extrude command creates 3D form by pushing a 2D shape along a direction. Closed profiles typically become solids, while open profiles can become surfaces.
Where It Appears
Extrude is used in 3D modeling workflows for walls, masses, machine parts, and any form that begins as a profile with depth.
Why It Matters
Extrude is one of the fastest bridges between 2D drafting and 3D modeling. It shows how simple profiles can become volumetric objects.
How This Shows Up in AutoCAD
This term shows up when the user needs to understand form, orientation, or solid and surface behavior in three dimensions. Extrude sits in the 3D & Visualization part of the glossary, which tells you the term is most relevant when that stage of work is active.
Extrude usually appears under the same name in commands, documentation, and training material. Learning the exact wording helps users recognize it faster when it appears in instructions or review comments.
What This Usually Tells You
When it appears, the question is usually spatial understanding: how to inspect, generate, or communicate three-dimensional shape. 3D vocabulary matters because users need to separate view changes from geometry changes and understand how forms are constructed.
For Extrude, the practical takeaway is that the term usually marks a repeatable drafting decision, not a one-off trick. It signals something a user should recognize, control, or verify on purpose.
Common Mistakes
A common mistake is confusing a viewing tool with a modeling tool, or a display effect with real geometry. That distinction is critical in 3D work.
Extrude is easiest to separate from nearby ideas such as 3D Orbit, Loft, Revolve, and Sweep. Reading those terms together clarifies which part of the workflow belongs to Extrude and which part belongs to adjacent tools or concepts.