To Subtract a Body Modifier From a Stair Component

Use this procedure to create a body modifier and subtract it from a stair component.

You can create a three-dimensional (3D) body modifier from a mass element, a mass group, or any other AEC object with mass. You can also create body modifiers from ACIS solids or blocks that form 3D bodies. You must place the object in the location you want in the drawing before defining the object as a body modifier.

The following illustration shows you how to use a mass element as a body modifier to subtract from a stair tread component.

Subtracting a body modifier from a stair component

1. Place the object in the location where you want to subtract the body modifier from the stair.
2. Select the stair you want to change with the body modifier, and click Stair tabModify panelBody Modifier drop-downAdd.
3. Select the object to subtract from the stair.
4. In the Add Body Modifier dialog box, select Tread for Stair Component and Subtractive for Operation.
   

5. Enter a description for the body modifier.
6. Select Erase Selected Object(s) if you do not want to keep the original object, or clear this option to keep the object in the drawing.
7. Click OK.