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Per default all Non-Design surfaces grow a little bit beyond their boundaries to ensure a trouble-free and clean intersection. This is done with an automatic detection of Non-Design faces. Sometimes this can lead to issues.
Everytime when Maching Allowances are applied on all functional surfaces this function can be deactivated. Even if this surface won’t be post processed in a precision machining process like milling, a Machining Allowance of 0 mm can be applied. This ensures sharp edges and planar surfaces after the intersection.
This automatic growing can be deactivated with the Advanced User Settings command below:
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