Bob La Londe on Fri, 30 Aug 2019 15:31:49 -0700
typed in rec.crafts.metalworking the following:
I have three small digital scales, and they have a reasonable margin of
error down to around .25 ounces. Maybe even .125. at 1/8 oz I double
check across all three because sometimes one or another feels a little
"sticky". I can't really justify the cost of a high end lab scale for as
often as I need to weight smaller objects, but I sometimes do need to
weigh small objects. Today down to .015625. 1/64th of an ounce. Two
of my scales round to the hundredth, and most of the time that's "good
enough." On these they both read .02. That's a huge margin of error.
The third scale that gives resolution to the thousandth didn't even
register the object in normal mode. Not surprisingly it is the cheapest
of the three.

I'm looking for something I can keep in my desk when I am doing design
and reverse engineering work to verify those small weights.

Yes this is metalworking related.

There was a saying back when clocks were a new fangled technology,
that if a man had one clock, he knew what time it was. But if he had
two, he could not be sure. (Some early clocks were +/- fifteen
minutes a day.)
Same applies he you have too many scales. B-) Not to mention,
you do not have one which is accurate "enough". Bite the bullet, and
buy one which will work for you. Which reminds me of the time my
friend was considering the purchase of a yard debris shredder. I
asked him "how often have you needed one?" He replied "Not often, but
if I had one, I would be using it more often."
So, in all likelihood, you will discover that being able to
measure to the 1/64th oz (or better) will become one of those things
you do more often. Because you have the scale "right over there."


--
pyotr filipivich
"With Age comes Wisdom. Although far too often, Age travels alone."