Extrusion Draft Angle

In this Task 

A circle profile will be extruded to a height of 150.  A draft angle will be given which will supply an extrusion taper of 5º

Before you Start 

Refer to the sample drawing for this Session if necessary.

Set the view to Isometric South East.

Workplane is set to Workplane by World ; display the Workplane.

Create new layers for Casing, Lens, Handle, and Globe.  Use the colors of your choice.

Sample Drawing

Use the sample drawingfor this session.

All the layers required for the design have been created in the Design Director. A copy of the model is stored in the Blocks palette.

Extrusion Draft Angle

Ribbon : Draw | Draw 3D | Simple Extrude | right click – Properties right click provides options for this function | Simple Extrude Shape | Draft Angle

Default Menu : Draw | 3D Object | 3D Profile Based | Simple Extrude | right click – Properties right click provides options for this function | Simple Extrude Shape | Draft Angle

Palette : 3D Model | 3D Object | Simple Extrude | right click – Properties right click provides options for this function | Simple Extrude Shape | Draft Angle

A draft angle can be applied to an extruded object to create an extrusion taper.Draft angles can be applied to all extruded profiles, such as a cylinder, polygonal prism, etc.

If you have not used the sample drawing for this session, use the Design Director to create a new layer called Handle. Use the color of your choice. In this Task, the Dim Gray color is used.

Draw a circle to a radius of 45 using the Handle layer.

Select the Simple Extrude tool from the menu options above, then right click in the editor and select Properties.

Select the 3D page and set the ‘Create 3D Object As..‘ to Solid.

Select the Simple Extrude Shape page, then apply a draft angle of 5º, shown below. Click OK.

Setting the extrusion draft (taper) angle

Select the circle, then TAB to the Height field and input a value of 150.  Press Enter.

Circle extruded to a height of 150 with a taper of 5°

Part shown with ACIS-Degenerative Faceting Options > ACIS > Degenerative Faceting on.