Watch the short video and learn how this works.
At this stage it is important for the software to distinguish between the abutment surfaces and the contact surfaces. We have already identified the contact surfaces in the previous step. In this step we will identify between the contact points and the abutments, and then make margins for the abutments.
Select the contact points and press the 'Select and Name Upper Contacts' or the 'Select and Name Lower Contacts' button. The contact point will turn pink, the abutments remain blue. The pink colour, this is indicative that the process has been completed correctly.
Next, select the blue abutment and press either the 'Add Support Margin 0.05' or the 'Add Support Margin 0.1' button. This will add a margin to the die which is either 0.05mm or 0.1mm thick. This is done to ensure an edge exists which can be milled without the edge becoming too thin.
In order to edit the thickness of the margin, just press the plus or the minus sign on the menu. To delete the margin use the 'Delete Margin' tab.