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Tolerancing a system with 2 OAP

  • January 22, 2025
  • 2 replies
  • 130 views
Bozkov

Hello,

After following the next article: The easiest way to tolerance an off-axis mirror

 

I have been struggling to manage the tolerances in my system since it has 2 different OAPs and as in the example, I have set one of them as the global coordinate reference
 

Apart from that issue, I really don't think my coordinate breaks are working properly to tolerance the OAPs (I only want to check the decentered and tilt tolerances).

Lastly, I don't really know why final focus is not hitting the center of the image.

Thanks

Best answer by Chris Normanshire

Hello. I just saw this old post and wanted to share that we have a new feature that will help set up this tolerancing correctly. NEST; Nested Elements and Systems Tolerancing – Ansys Optics

    2 replies

    Chris Normanshire
    Zemax Staff
    Forum|alt.badge.img+2

    Hello. I just saw this old post and wanted to share that we have a new feature that will help set up this tolerancing correctly. NEST; Nested Elements and Systems Tolerancing – Ansys Optics

      Bozkov
      • Bozkov
      • Author
      • Infrared
      • January 29, 2026

      ​@Chris Normanshire Hello Chris, I have both versions, R1 and R2 and can not see this option of nesting group of surfaces. How can I solve it? Is there any alternative way of doing it? In my case, before defining each surface I have a Return to Surface 1 Coordinate Break, in order to simplify the positioning of each element (I have a complex system). But this makes the Nesting of the surfaces harder.

      Best regards

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