Tube

The Tube command draws a closed cylinder with a concentric cylindrical hole.

Steps

1. Pick the center and radius of the base. See the Circle command for option descriptions.

2. After drawing the base circle, pick the radius/diameter for the second tube wall.

3. Pick the end of the tube or type a height.

Command-line options

-Direction constraint options: Direction constraints restrict the direction of the circle.

• Nonce: The center can be anywhere in 3-D space.

  • Pick the second point anywhere using elevator mode, object snaps or other modeling aids.

• Vertical: Draws an object perpendicular to the construction plane.

  • Pick the center and a radius or diameter.

• AroundCurve: Draws a circle perpendicular to a curve.

  • Select a curve and pick the center of the circle on the curve and a radius or diameter.

-BothSides: Draws the object on both sides of the start point, creating the object twice as long as you indicate.

-WallThickness: Specifies the value for the distance between the inside and outside of the tube.

For more information, please refer to the Rhino documentation.