Machine remaining stock (flat finishing)

1. On the Manufacture workspace toolbar, click Milling > 3D > Flat.

   The Flat dialog opens.

2. Complete the necessary steps of selecting a tool, defining any machining boundaries, and setting the heights.

   Note: When using rest machining, the tool you use in this operation should generally be smaller than the tool used in previous operations.

3. On the Geometry tab, select the Rest Machining checkbox.

4. From the Source drop-down menu, select how to detect what stock is remaining:

   • From previous operation(s): Detects what material is remaining by considering all the previous operations in the setup.
   • From bodies: Lets you select bodies that are modeled to represent the remaining stock.
   • From setup stock: Uses the stock defined in the setup to detect what material is remaining.

5. (Optional) To filter out small areas of toolpath that are not beneficial to machine, increase the Detection Limit.

   Note: The Detection Limit takes into account the stock to leave. This means that rest machining detects and machines material that is greater than the sum of the detection limit value and the stock to leave value.

6. (Optional) To extend toolpath coverage to overlap between nearby regions for a better surface finish, increase the Extension distance.

7. Click OK to generate the toolpath.

Watch this video to see a rest machining example that demonstrates using the Detection Limit and machining with Multiple Depths.