2011

Summary
Use a helix as a sweep path for the SWEEP on page 1028 command to create
springs, threads, and circular stairways.
Initially, the default base radius is set to 1. During a drawing session, the
default value for the base radius is always the previously entered base radius
value for any solid primitive or helix.
The default value for the top radius is always the value of the base radius.
The base radius and top radius cannot both be set to 0.
List of Prompts
The following prompts are displayed.
Number of turns = 3 (default)
Twist = CCW (default)
Specify center point of base: Specify a point
Specify base radius or [
Diameter] <1.0000>: Specify a base radius, enter d to specify
the diameter, or press ENTER to specify the default base radius value
Specify top radius or [Diameter] <1.0000>: Specify a top radius, enter d to specify
the diameter, or press ENTER to specify the default top radius value
Specify helix height or [Axis endpoint/Turns/turn Height/tWist] <1.0000>:
Specify a helix height, or enter an option
Diameter (Base)
Specifies the diameter of the base of the helix.
Specify diameter <2.0000>: Specify a diameter or press Enter to specify the default
value
Initially, the default base diameter is set to 2. During a drawing session, the
default value for the base diameter is always the previously entered base
diameter value.
Diameter (Top)
Specifies the diameter of the top of the helix.
Specify diameter <2.0000>: Specify a diameter or press Enter to specify the default
value
The default value for the top diameter is always the value of the base diameter.
500 | Chapter 9 H Commands