3D Subtract

In this Task 

• The volume of the new extrusion will be subtracted from the primary solid using 3D Subtract.

Associated Tasks 

• Viewing the result from multiple viewpoints.
• Using the Suppress Hidden Line mode.
• Using Draft Render.

Before you Start 

• View is set to Isometric South East.

Take Note 

• The order in which the objects are selected is important. Always select the primary solid first, then the subtracting unit.

3D Subtract

Ribbon : Modify | 3D Modifications | 3D Boolean | 3D Subtract

Default Menu : Modify | Modify 3D Objects | 3D Boolean Operations | 3D Subtract

Palette : 3D Model | Boolean & Facet | 3D Subtract

This boolean function subtracts a secondary solid from an intersecting primary solid (subtrahend)

 

Select the 3D Subtract tool from the menu options above, then select the primary solid shown below.

Selecting the primary solid

Next, select the subtracting unit, defined as the subtrahend, shown below.

Selecting the subtracting unit

The result is shown below.

Key-way subtracted from primary solid

Delete the original profile, then view the model using the Suppress Hidden Lines rendering mode.

Delete profile, then view using Suppress Hidden Lines

When rendered using Draft Render, the result should be similar to the illustration below.

Rendered using Draft Render