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For close precision work in. is better. An inch micrometer can measure to .0001 in. The smallest unit on a metric mic is .001 mm (.0001 in = .000393701 mm.)
no youâre math is right my post was wrong, a metric mic can only only read 2 decimal places not 3 so ,01 mm=.000397 in. or aprox. 4 times .0001 in. thatâs what I get for doing math in my head.
FWIW, that argument does work for Fahrenheit vs. Celsius/centigrade â itâs even more cogent there since 180 degrees between freezing and boiling pretty much matches the human ability to differentiate temperatures, but itâs quite easy to have two objects which while ostensibly the same temperature (measured in Celsius) are perceived to be different in temperature.
Thereâs also a greater tendency towards consensus of comfortable temperature ranges (most folks will agree 60s are cool, 70s comfortable, 80s warm, 90s hot, but few will agree on 21 or 27 degrees C as the dividing temperature).
While itâs nice that we have the objective/rational Metric system, Iâm glad to have the option to use the human-centric Imperial system which affords an easy way to divide things into thirds (and if need be, I can haul out a graphic deisgn ruler which uses PostScript points for 72 units per inch).
Infinite decimals matter when I get a page layout and an art program for a multi-column layout and the size of a two column ad does not equal column width Ă 2 + gutter â happens all the time from countries using metric, but Iâve never gotten a file set up in Points/Picas which didnât work out perfectly â some composition systems will then scale the ad up or down to fit (usually itâs up) which if some multiple appears on the page will cause text to go to the next page, which eventually will throw off the page counts.
Metric is appropriate for CAM and when machines are doing the counting, so long as things are set up and allowed to work out. Itâs a pain if thereâs anything else going on.
OK Iâll playâŚ
Imperial only still exists because the US and two other obscure countries are too stubborn to admit the rest of the world have a superior unit system in virtually every respect. Case and proof: this thread.
Just bc youâre used to it doesnât mean it makes sense. Itâs okay to be rational about it.
this is irrelevant in the discussion.
metric micrometers go to 3 decimals.
So you ARE using decimals? Theyâre handy arenât theyâŚ
As Iâve noted in other threads on this â not being able to divide by thirds, sixths, twelfths, &c. and have things come out evenly makes work tedious.
Iâd probably be more inclined to switch, or at least use metric more except the last time I found a metric brass-bound four-fold boxwood rule it was $400.
I know you are very passionate about what you do, but I doubt the SI cares tbh.
I have some experience in graphics & print, and it just is not an issue. Never was, and now with digital printing: never will be.
I have a lot of experience in graphics & print. Dealing with incorrectly sized / inconsistent ad programs is a pain, and a potential point of error as noted.
The scaling problem comes up on jobs I work on as noted due to the composition systems I work with, XML PP (formerly XyVision), &c.