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Recent content by Todd_A

  1. Todd_A

    GRR Flatness with a robot and CMM scan

    Thanks IRstuff. Yes, the part run was kept in order. This is metric, and I'm simply using a template http://econoshift.com/en/gage-rr-template-2/. Again though, the numbers were run through several different templates. One we usually use in house here, and then whatever I could find to compare...
  2. Todd_A

    GRR Flatness with a robot and CMM scan

    I have read several posts that warn against doing GRR on flatness because of variation of the appraiser. How does that coincide with a robotic cell, where there is no human interaction? A robot loads the part on a CMM, and the flatness is scanned. The robot then removes the part, picks up...
  3. Todd_A

    Composite GD&T Again

    Thank you guys for your advice, I appreciate it.
  4. Todd_A

    Composite GD&T Again

    I understand the concept of what you're saying, but what if there is no plane at the bottom of the holes? What if it's cast, or just not accessible? Would you have to construct a cylinder in each hole, and then translate the main datum plane to the bottom of that cylinder and intersect to create...
  5. Todd_A

    Composite GD&T Again

    I've read several responses to a similar question. I'm asking again, for my specific issue so I know it's being answered for my specific issue. Please see attached .PDF. This is referring to a bolt hole pattern setting on the |A| datum. Exactly what does this mean? How would you properly check...

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