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Occhrome t1_j92af4m wrote

Reply to comment by ExHempKnight in "The longest-lived micrometer than can be bought." J.T. Slocomb micrometers and stand, all fully restored by myself. Each mic is between 70-120 years old, and they're all still accurate. by ExHempKnight

I’m sure they will be fine. We calibrate our sensitive torque wrenches all the time and they hardly ever need adjustment.

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ExHempKnight OP t1_j92m00q wrote

I'm sure they will, as well. But as old as they are, I'm sure they're a bit worn. I don't need them to be exact, I mostly need to know exactly how off they are, so I can compensate when I calibrate the mics.

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THE_CENTURION t1_j92q9rn wrote

I mean... That's a completely different kind of tool I don't know why you think that's applicable.

These kinds of standards can corrode and change or need to be re-lapped, or just wear. That doesn't ruin them, but you need to know how long they actually are so you can zero the micrometer correctly.

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avidblinker t1_j9335mn wrote

Nah they’re right. I calibrate the color on my computer’s LCD display at home every few months and typically don’t need to change much

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Lampshader t1_j93bdpu wrote

Nah that can't be right, because I have to reset the clock on my microwave every month

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The_Best_Dakota t1_j93hrak wrote

That’s just the power company being shit

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Lampshader t1_j93ijx3 wrote

It almost certainly has its own internal clock rather than using the mains frequency, but that's beside the point

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The_Best_Dakota t1_j93irt9 wrote

I was making a joke about the power going out and needing to reset it bc I find myself having to do that at a frequency that’s probably more consistent than that of the power itself

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