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Review date: 2011-May-24
Applies to:
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ZW3D CAD Tips （ Sketching —— Make sure base lines, arcs, circles and curves are properly constrained ）
You should ensure that the base line, arc, circle, or curve that you are constraining to is also properly constrained. For example, placing a 2D Anchor Constraint on the base curve will fix it in position while other geometry is constrained to it. The base curve may also be constrained to other geometry thus determining its position. A base curve that is unconstrained may produce unpredictable results when the constraints are solved.
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