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The Offset Distance defines how much material at the front and back surface will also be defined as interface regions. In case of a sleeve for a screw not only the inner cylinder is important but also the front face where the screw head is connected to the part. This front face is also a functional surface and needs to be applied with an Machining Allowance. Tip
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Note: When the interface thickness >= ≥ offset distance , then the interface volume will be hidden in GUI due to a current limitation, but the . The optimization will still handle the interface volume internallyaccording to the entered value.