How to > Advanced features and topics > Position and modify > Example: Change radius
  
Example: Change radius
To change the radius of a tangentially connected face
In this example, you will change the radius of a cylindrical face (1) which is connected to its adjacent flat faces (2) by smooth tangential transitions.
When defining the Change Radius operation, you can choose whether to keep the tangency in the resultant part the same as that in the original part. If you choose not to keep the tangency, the tangential transition between the cylindrical face and the flat faces is lost and replaced by an edge.
The figure compares the results of the Change Radius operation when Keep Tangency is switched off (3) and on (4).
Changing the radius of a tangentially-connected face
1. In the Modeling Commands tool bar, click Change radius.
2. Click to open the Change Radius dialog box.
3. Click Radial Faces and select the cylindrical face (1). The face is highlighted in yellow.
4. Choose whether to keep the tangency in the resultant part or not. If you clear Keep Tan, the tangential transitions between the faces will be lost and replaced by edges in the resultant part. If you click Keep Tan option, the faces adjacent to the cylindrical face are shown in an orange color.
5. Click New Radius and enter a new radius of 17 mm.
6. At this stage you have three choices:
Click Preview to display the position to which the faces will be moved when you change the radius.
Click to complete the operation.
Click Next to change the radius of the face without closing the option box. Creo Elements/Direct 3D Access re-uses all parameter information that you used in the first Change Radius. You can specify different faces or change the radius.
Creo Elements/Direct 3D Access changes the radius of the selected face as requested.