Defining AxiGrooves
Follow these steps to define an AxiGroove that is not represented in your CAD model:
1 Ensure that your part is displayed in the Component Viewer. In the Component Viewer tool bar, click the gear tool, . The Gear Definition dialog appears.
2 In the Component Viewer, click an appropriate surface to indicate the location of the gear to be defined. This defines an AxiGroove that is bounded by the specified surface. You can adjust the exact geometric properties of the gear in the next step.
An appropriate surface is both about a turning axis and one of the following:
o Cylindrical
o Conical
o Inside of a hole or ring
When you hover over a surface, aPriori highlights it if it is appropriate.
If a surface is intended to be turnable, but modeling errors prevent extraction of an IS ABOUT relation with a turning axis, you can add a user-defined turning axis. Click the Setup Axis icon in the Viewer toolbar, and select Modify Turning Axes…. Re-extract GCDs once you have created the new turning axis.
When you click an appropriate surface, aPriori populates the fields of the Gear Definition dialog with default values that are based on the properties of the selected surface. It chooses a default gear type (which you can modify in the next step) based on the shape of the surface (for example spur gear for cylindrical surfaces and bevel gear for conical surfaces), as well as on whether the surface is internal or external to the part. When aPriori populates the dialog with default values, it displays only the fields that are relevant to the chosen gear type.
Note that you cannot graphically specify the gear width, but rather must specify it with the Face Width field of the dialog.
 
3 For each field of the Gear Definition dialog, if you do not want to use the default provided in the left-hand column (labelled aPriori Default), enter a value in the right-hand column (labelled Override Value). Be sure to enter the correct number of teeth. See Using the Gear Definition Dialog for information on each field.