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How to do a base alignment without a solid model with the romer arm?? - new user

Good morning
I am a brand new user with the romer arm. Could any one direct me on where to obtain the information I need to get started with a base alignment? Please and thank you.
Parents
  • Do you have CAD ? (I believe you don't because of the title, but I'm not sure...)
    You can construct an alignment step by step, but it depends on the type of part.
    For a cubic part, you can measure 3 planes (3 hits by plane in a first time is enough), then construct a corner point from them and align :level Z on PL1, rotate X PL2 around Z, origin on corner point.
    By this way, you just create an alignment to measure in the part alignment, and not in the arm one.
    Then, you can measure more hits on each surface to be dimensionned.
    For a cylindrical part, measure some hits on the cylinder (6 min on 2 levels) level Z on it and origin XY on it. Find a feature to get the rotation (a hole on a side, a pin...) to fix the alignment.

    It's important to make the difference between the part alignment that you use to "say to the arm" where is the part, and the datums alignment that you use to dimension.
    They can be "the same", but it's not necessary. -Just a thought...

    Maybe some training could be good for you...
Reply
  • Do you have CAD ? (I believe you don't because of the title, but I'm not sure...)
    You can construct an alignment step by step, but it depends on the type of part.
    For a cubic part, you can measure 3 planes (3 hits by plane in a first time is enough), then construct a corner point from them and align :level Z on PL1, rotate X PL2 around Z, origin on corner point.
    By this way, you just create an alignment to measure in the part alignment, and not in the arm one.
    Then, you can measure more hits on each surface to be dimensionned.
    For a cylindrical part, measure some hits on the cylinder (6 min on 2 levels) level Z on it and origin XY on it. Find a feature to get the rotation (a hole on a side, a pin...) to fix the alignment.

    It's important to make the difference between the part alignment that you use to "say to the arm" where is the part, and the datums alignment that you use to dimension.
    They can be "the same", but it's not necessary. -Just a thought...

    Maybe some training could be good for you...
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