PTC Creo ModelCHECK Teacher: Surface Gaps and Overlaps
Surface irregularities are most often found in models that have been imported from other CAD systems.
Why are surface gaps and overlaps dangerous?
• If you attempt to make a solid model from a quilt (a bunch of surfaces merged together), the quilt must be watertight (no gaps or overlaps)
• If you attempt to create a protrusion with Use Quilt, if the quilt has any gaps in it , Creo Parametric will protrude to infinity through the gaps.
• Gaps and overlaps will give you problems in downstream applications such as Pro/MANUFACTURE, Pro/MOLD, and Creo Simulate.
How can surface gaps and overlaps be avoided?
If you find that there are gaps and overlaps in surfaces when they are imported, try re-importing using a different accuracy.
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It is recommended that you use CAD/IQ to help analyze surface irregularities that Creo ModelCHECK finds.
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