The datum plane FREE_FACE is the default plane for the creation of the electrode base. The datum plane is defined in operation UI and has an offset from the bounding box of the workpiece in +Z direction. The datum plane is copied into every new electrode and therefore all electrodes have the same height over the workpiece if the automatic processing is used:
For the highlighted electrode it makes sense to place the base deeper in the workpiece to minimize the required size of the blank:
This can be done in two different ways:
Redefine datum plane FREE_FACE in electrode
Select FREE_FACE and start redefinition
Change constraint type from Through to Offset and edit translation value
Confirm feature definition
FREE_FACE is still dependent from assembly default and adopts all changes accordingly.
Create base on selected surface
In the second approach, the surface for the base will be selected by user during the electrode design.
Extract and cleanup electrode geometry
Select surface for base creation
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