How to Loft in AutoCAD: Step-by-Step Guide
In AutoCAD, use the
LOFT command to create a smooth 3D shape by connecting two or more cross-section profiles. Simply select the profiles in order, and AutoCAD will generate a surface or solid that blends them together.Syntax
The basic syntax for the LOFT command in AutoCAD is:
LOFT- Starts the loft command.- Select cross-section profiles - Choose two or more closed or open shapes to connect.
- Specify options - Choose whether to create a surface or solid, and adjust continuity or guide curves if needed.
- Press Enter - Completes the loft and generates the 3D shape.
autocad command line
Command: LOFT Select cross sections or [Settings]: (Select profiles in order) Select cross sections or [Settings]: (Press Enter to finish) Lofted surface created.
Output
Lofted surface created.
Example
This example shows how to loft between two circles of different sizes to create a tapered 3D shape.
autocad command line
1. Draw two circles on different planes or heights. 2. Type LOFT and press Enter. 3. Select the first circle, then the second circle. 4. Press Enter to finish selection. 5. AutoCAD creates a smooth tapered surface connecting the two circles.
Output
Lofted surface created connecting two circles.
Common Pitfalls
- Incorrect profile order: Selecting profiles in the wrong order can twist or distort the lofted shape.
- Non-compatible profiles: Profiles must be closed or open shapes that can logically connect; incompatible shapes cause errors.
- Missing guide curves: Without guide curves, the loft may not follow the desired path, resulting in unexpected shapes.
- Forgetting to set solid option: By default, loft creates surfaces; to create solids, enable the solid option in settings.
autocad command line
Wrong way: Command: LOFT Select cross sections: (Select profiles in random order) Result: Twisted or incorrect shape. Right way: Command: LOFT Select cross sections in correct order. Settings: Enable 'Create Solid' if needed. Result: Smooth, correct 3D shape.
Quick Reference
| Step | Description |
|---|---|
| LOFT | Start the loft command |
| Select Profiles | Pick two or more cross-section shapes in order |
| Settings | Choose surface or solid, adjust continuity |
| Enter | Complete the command and create the loft |
Key Takeaways
Use the LOFT command to connect multiple profiles into smooth 3D shapes.
Select profiles in the correct order to avoid twisted results.
Enable the solid option in settings to create solid 3D objects instead of surfaces.
Guide curves help control the loft shape for complex designs.
Profiles must be compatible shapes for a successful loft.