3D sketch
2D sketch on a 3D sketch plane
Create splines in 3D sketches or use 3D sketch planes.
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To create a spline in a 3D sketch:
Click 3D Sketch 
(Sketch toolbar)
or Insert, 3D
Sketch.
Click Spline 
(Sketch toolbar)
or Tools, Sketch
Entities, Spline.
Click to place the first spline point, then drag to sketch the spline.
The Spline PropertyManager appears.
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Each time you release the left button, a new 3D origin is created:
To change planes
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Continue to place spline points and change planes if necessary.
When the spline is complete, double-click to stop sketching.
With some exceptions, such as the Z
coordinate 
, editing 3D splines is similar to editing 2D splines.
Modify 3D splines with the following tools:
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, press 
