Helical Surface

(3D only) Used to construct a helical-shaped B-spline surface by sweeping a section profile curve along a helix curve.

You can access this tool from the following:

Setting	Description
Thread	Sets the direction of the helix: Right — The helix has a right-hand thread. Left — The helix has a left-hand thread.
Base Radius	If on, sets the base radius of the helix curve.
Top Radius	If on, sets the top radius of the helix curve.
Pitch	If on, sets the distance between each loop of the helix curve
Height	If on, sets the overall height of the helix curve.
Tolerance	If on, sets the tolerance for the B-spline surface.

Key-in: CONSTRUCT SURFACE HELICALSURFACE