1. Create a new Creo model of type Part or Assembly. Assign the name of the attachment to this part or assembly. Reproduce the geometry of the attachment by using the appropriate construction features (protrusions, cuts, and so on). This geometric representation can be as accurate or as simplified as you wish.

2. Create a coordinate system to define the holder orientation on the machine, and change the name of the coordinate system to SPINDLE_CONTROL_POINT. When you use the attachment, the z-axis of the SPINDLE_CONTROL_POINT coordinate system is aligned with the z-axis of the Machine coordinate system.

3. Create a second coordinate system, which provides the tool orientation and is used to attach the tool. Change the name of the coordinate system to TOOL_ATTACH_POINT. When you use the attachment, the z-axis of the TOOL_ATTACH_POINT coordinate system is aligned with the z-axis of the NC sequence coordinate system. If you use a solid tool model, you must define an additional coordinate system named ATTACHMENT in the tool model, and Creo NC attaches the tool by aligning this coordinate system with the TOOL_ATTACH_POINT coordinate system of the attachment. If the ATTACHMENT coordinate system is not defined in a solid tool, Creo NC uses the TIP coordinate system in its place. If you use a parameter-driven tool, Creo NC attaches the top end of the tool to the TOOL_ATTACH_POINT coordinate system.

4. Add to the model a parameter with the name ATTACHMENT_NUMBER, type Integer, and value corresponding to the holder identification number. This value is used for CL output.

5. Save the model.