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Extrude Defining a Draft Angle

Optional Step 1

By default, an extrusion has no draft angle. In other words, it is a uniform prism; for example:


This step enables you to define a draft angle if required.

The following options/parameters are displayed:

Draft Angle This is a toggle option Draft Angle / None:

Draft Angle Define a draft angle for this extrusion.

If the extrusion is to both sides of the extruded entity, you can set different draft angles and directions for each extruded side. The Both Sides option is available in Required Step 2 for the Extrude Delta/Reference and To Closest options, and is the default in the Delta Mid Plane option.


None No draft angle is defined and the options/parameters for this step are not displayed.


Inside This is a toggle option Inside / Outside:

Inside Select Inside if you want the extrusion to decrease in area as it moves from the contour.


Outside Select Outside if you want the extrusion to increase in area as it moves from the contour.



Draft Angle Enter the required draft angle value. Note that if the angle is too large, the extrusion may become geometrically invalid!


Note: A Draft Angle cannot be applied to the Extrusion of a 3D face.


Invert Active Object

The Invert Active Object parameter appears in a number of functions, for example the Extrude and Revolve functions under Solid >Add/New/Remove. The parameter is available only for open objects.

An example of the use of this parameter is as follows:

A circle is extruded to form a cylinder,..nk2 using the parameters shown below:nk3

Press the Invert Active Object option to move the cylinder (the active object) the Delta distance in the defined direction. Pressing the option again, returns the cylinder to its original location.


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