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Threaded hole axis as a Datum

I've got a part that is pretty cylindrical with an OD as Datum A, a front plane as Datum B, and Datum C is the axis of a hole that has a threaded insert installed. What is my best option for creating my alignment with this? Should I just use a read point for Datum C?
Parents
  • You will more than likely run into one or more of these issues at some point though. Upside down
    Locators work well but they are a pain. You will inevitably forget to install one in your longest running hot program. You will inevitably forget to take out ALL of them at some point and lose them forever. You'll wind up being one or two short for the hot job that you've got to do. If management decides that they need to be calibrated Rolling eyesthey're gone for a couple of weeks. Checking for chips/ burrs should be a fundamental part of the inspection process. Questioning out of tolerance results should be a fundamental part of the inspection process.

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  • You will more than likely run into one or more of these issues at some point though. Upside down
    Locators work well but they are a pain. You will inevitably forget to install one in your longest running hot program. You will inevitably forget to take out ALL of them at some point and lose them forever. You'll wind up being one or two short for the hot job that you've got to do. If management decides that they need to be calibrated Rolling eyesthey're gone for a couple of weeks. Checking for chips/ burrs should be a fundamental part of the inspection process. Questioning out of tolerance results should be a fundamental part of the inspection process.

Children