Flattening a 3D drawing in AutoCAD LT allows you to convert 3D objects into a 2D representation, essentially projecting them onto a plane. This is commonly done to create traditional 2D layouts, sections, or elevations from a 3D model for plotting or further 2D detailing. The primary tool for this task in AutoCAD LT is the FLATTEN command.
According to a reference provided as of October 15, 2024, the process involves following a specific sequence of actions within the software.
Steps to Flatten
To flatten selected 3D objects into 2D geometry, follow these steps:
| Step | Action | Detail |
|---|---|---|
| 1 | Prepare Layers | Turn off or freeze any hatch layers with hatch patterns. |
| 2 | Initiate Command | Type FLATTEN on the command line. |
| 3 | Select Objects | Select all objects you wish to flatten and press the Enter key. |
| 4 | Address Hidden Lines | Type N for No when prompted to remove hidden lines. |
Following these steps will convert the selected 3D geometry into 2D lines and curves that lie on the XY plane of the current User Coordinate System (UCS), based on the specified procedure.
