Have you ever opened a drawing and wondered why the position tolerance had no datums?
In this video, I’ll show you what bore pattern position really means according to ISO 5458:2018, how it differs from a normal position tolerance, and how to evaluate it step by step inside Zeiss Calypso — both with the classic method and the new GD&T engine.
You’ll learn:
✅ What a pattern position actually controls
✅ When to apply it with or without datums
✅ How Calypso interprets pattern tolerances in practice
✅ How to use the new GD&T library for bore patterns
🎓 Perfect for: measurement engineers, CMM programmers, and anyone working with ISO GPS standards.
💡 Download the CAD model and full practice example on my Patreon page (link below).
If this helped you understand pattern tolerances better, leave a like, drop a comment with your own experience, and subscribe for more metrology videos!
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#Metrology #Calypso #Zeiss #ISO5458 #CMM #GDandT #PatternPosition
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