this post was submitted on 26 Sep 2024
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Science Memes

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fwiends (mander.xyz)
submitted 3 weeks ago by [email protected] to c/[email protected]
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[–] [email protected] 2 points 3 weeks ago (1 children)

I learned recently that machinists used to use fractions to indicate tolerance, like a dimension given as 5/16 could be ±1/32 of an inch, because anything less than 9/32 would round to 4/16, and anything more than 11/32 to 6/16.

[–] [email protected] 3 points 3 weeks ago

It can still happen, but usually at the customer's request/requirements. We actually use inches at a much smaller scale, but use decimals instead of fractions.