Setting up the base requires the parameter of its thickness. That may be applied by using the slider and selecting an appropriate value (1).
The thickness is guaranteed to be a minimal thickness for the whole base. The default thickness shown here is defined by the material used. It must be ensured that the material does not break, when it is milled.
Relief zones are elevated, but the material still has the thickness provided here. The A-Line is lowered and produces a suction effect if needed.