Extruding the Circles

In this Task

• The larger circles will be extruded by 20 above the Workplane.
• The smaller circles will be extruded upwards, through the object.

Associated Tasks

• Using different views during the extrusions.

Before you Start

• The Workplane is displayed.
• The view is set to Isometric South East.

Take Note

• The smaller circles will be extruded through the object to a non-specific height as the extruded objects will be subtracted from the primary unit to create holes.

SIMPLE EXTRUDE

Ribbon : Draw | Draw 3D | Simple Extrude

Default Menu : Draw | 3D Object | 3D Profile Based | Simple Extrude

Palette : 3D Model | 3D Object | Simple Extrude

This extrusion tool sweeps a 2D profile in a plane perpendicular to the workplane to create a 3D object.

 

Select the Simple Extrude tool from the menu options above, then select the larger circle on the top facet of the part.

TAB to the height field, then input 20 and press enter. The result is shown below.

Circle extruded by 20 above the top facet.

Viewed in Hidden Line view

Always check the model from different viewpoints to check the extrusion. In the illustration below, the model is shown from the Front view.

Model shown from Front view using Suppress Hidden Line display

Model shown from Isometric North East view using Draft Render display.

When objects are extruded for the purpose of being used as subtracting units, as is the case in this Task, then the extrusion height can be produced at any height or depth providing it exceeds the height/depth of the model for which it is being used to subtract volume.

Turn the view to Isometric South East and display the model in Wireframe display. From the 3D Object menu, select the Simple Extrude tool, then select one of the smaller circles.

Begin the upward extrusion so that the height of the extruded circle exceeds the height of the base, shown below.

Extruding the smaller circle

If necessary, turn the view to an Orthographic view such as Front or Side, providing clearer visibility of the extrusion, shown below.

Extruding the circle above the base of the object

Left click when the extrusion height clears the height of the base.

Repeat this task for the remaining 2 circles, again extruding to any height which exceeds the height of the base, shown below. Different colors have been used in the illustration below for visual clarity.

Circles shown extruded above the base of the 3D object

(View rotated using View > Orbit > Examine)

Hint

Hold down the mouse wheel and move the mouse to rotate the view.