cal sphere at 60 deg

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  • cal sphere at 60 deg

    Need help real quick please. Got a new CMM and the cal sphere is at a 60 deg angle. What do I tell the user of the new machine to calibrate the new probe at? 60 sin ? x y z ??

    THANKS for the quick help!
    -Bill

    PC-DMIS 4.2 MR1 - Global Image 7107 - PH10MQ - SP600M

  • #2
    Depends on how you put it !!!!!
    You have to open the sphere config, and adjust ijk (for example, if you have 60° angle only in Y plane you have sin(60) on i and cos(60) on k, 0 on j.
    Carefull on how you measure 60° !!!!!!
    Another way is simply measure a cylinder on the stem, then write its vector in the sphere config.

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    • #3
      Good stuff JEFMAN ... I never thought of telling him to measure the stem. DUH!

      I didn't add before, sorry, the stem is pointing up at the sky @ yminus @ 60 deg.

      But no matter, told him to cylinder the stem and get the vectors from there. I think he should be good. Too easy
      -Bill

      PC-DMIS 4.2 MR1 - Global Image 7107 - PH10MQ - SP600M

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      • #4
        Originally posted by PowerJunkie View Post
        Good stuff JEFMAN ... I never thought of telling him to measure the stem. DUH!

        I didn't add before, sorry, the stem is pointing up at the sky @ yminus @ 60 deg.

        But no matter, told him to cylinder the stem and get the vectors from there. I think he should be good. Too easy
        so (0, -0.866,0.5) should work...

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        • #5
          Originally posted by jefman View Post

          so (0, -0.866,0.5) should work...
          nice!
          Ty!!
          -Bill

          PC-DMIS 4.2 MR1 - Global Image 7107 - PH10MQ - SP600M

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          • #6
            If it's a calibration sphere, you simply create a new tool at 60° with the right diameter...

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            • #7
              Originally posted by InspectorJester View Post
              If it's a calibration sphere, you simply create a new tool at 60° with the right diameter...
              Yes. And no I don't think. You have to tell it the vectors, not just 60 deg. He's working on 2019, don't know if that has anything to do with it.
              Any to add... kinda off topic kinda not... he JUST returned from the PC-DMIS beginner class in so cal. They didn't cover this kind of basic stuff. Granted, why would they when people there don't know EFF all anything and they're learning from scratch. Anyway, this dude (my co-worker) has been working on CMM's longer than I've been alive. Not to say he couldn't figure it out, but he asked, so I asked.
              ALSO... this new version ... when you go to add 'probe angles' .. it doesn't give you a "grid" like we're used to. You just manually type in what you want. I don't like it, not one bit.
              -Bill

              PC-DMIS 4.2 MR1 - Global Image 7107 - PH10MQ - SP600M

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              • RIDER
                RIDER commented
                Editing a comment
                In the drop down menu under add angle, you can select From Grid.

              • InspectorJester
                InspectorJester commented
                Editing a comment
                You are correct on the vectors, not 60°. An easy way to find the vector is to create an alignment, offsetting by 60° so the trihedron faces the way the sphere should face. Then create a line or something with a 0,1,0 vector. Then delete the alignment, and choose YES to update the part to current alignment.
                If all's well, you should be able to use this vector for the tool

            • #8
              ... it's getting better an better
              -Bill

              PC-DMIS 4.2 MR1 - Global Image 7107 - PH10MQ - SP600M

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