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CAD tip # 12456:

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How to EXTRUDE with a twisted profile in AutoCAD?

If you need to extrude a given 2D shape (profile) to 3D space in AutoCAD - along a line or along a curve, and rotate (twist) it during the extrusion, use the command SWEEP (not EXTRUDE).

Select the source profile and before you select the sweep path (direction, rail), use the option "Twist" to enter the total twist angle. Usually you will enter multiples of the 360° angle. Then select the sweep trajectory.

Samples of the sweep process are illustrated in the video:

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applies to: AutoCAD ·

See also:
Tip 12471:	What for is the Bank option of the SWEEP command?
Tip 7378:	How to extrude a profile along an arc or curve?
Tip 7267:	How to make a 3D solid from a series of profile outlines?
Tip 6537:	How to model a 3D thread (screw) in AutoCAD?
Tip 5200:	How can I use vehicle traversion paths in AutoCAD?

Selected tip: How to create an axis of two curves? (average curve)

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