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Radius Not Enough % of a Circle

Lukas Frey

Most of our prints have radii that are impossible to measure accurate/repeatably because there is not enough % of a full circle:

I could use a polar radius, but isn't that essentially just Profile of a Surface to datums? And it would not be measuring per print.

Are there any other ideas that I'm missing? I've asked a few of the engineers to correct this on the print side of things, but I haven't been able to get through. At this point I'm just adding a report comment "THE FOLLOWING DIMENSION IS NOT ACCURATE."

Thanks for your input!

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    Wow, I think I found my solution! Thanks guys. My results are within a couple thousandths from nominal. I'll make sure I double check my results with a comparator.

    Here's what I did: for the size of the radius, I measured a normal autocircle (LEAST_SQR) and included a report comment "IF OUT OF TOLERANCE, CHECK WITH OPTICAL COMPARATOR." For the location of the radius (dimension not shown in my example), I measured it again as a "FIXED_RAD" autocircle.

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  • 0

    Wow, I think I found my solution! Thanks guys. My results are within a couple thousandths from nominal. I'll make sure I double check my results with a comparator.

    Here's what I did: for the size of the radius, I measured a normal autocircle (LEAST_SQR) and included a report comment "IF OUT OF TOLERANCE, CHECK WITH OPTICAL COMPARATOR." For the location of the radius (dimension not shown in my example), I measured it again as a "FIXED_RAD" autocircle.

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