Default UI Menu: Draw/3D Object/3D Polyline

Ribbon UI Menu:

3D polyline is similar to 2D Polyline (see Polyline), but the user can place line segments anywhere in 3D space. The user is not restricted to their current workplane.

You can enter coordinates in the Coordinate Fields, but there are no input fields in the Inspector Bar for this tool. Unlike the 2D Polyline, you cannot add arc segments, nor can you manipulate line thicknesses.

Note: If you want to create a 3D polyline by joining existing linear and/or non-linear segments, use the 3D Polyline option of Join Polyline. See Join Polyline

3D Polylines can be used in two other tools, 3D Fillet and Pipe.

Local menu option:

Create 2D:

Create 2D option is available for the 3D polyline tool which Enables user to create the 3D polyline as a flat polyline.

Clicking this option from the local menu creates a flat (to the Workplane) 2D object instead of 3D one.

Open/Closed Polyline

You can determine whether the polyline (2D/3D) is closed or not, you can choose to turn on and off without having to go through the node edited tool.