Comment on Why do Americans measure everything in cups?

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captain_aggravated@sh.itjust.works ⁨8⁩ ⁨months⁩ ago

I didn’t convert a quarter inch to 9.5mm. First of all a quarter inch is somewhere around 6.5mm. I divided 19mm by 2. Just like I divided 3/4" by two to get 3/8".

I’m talking woodworking here, not carpentry. .3333mm is ~1/64", which is the maximum error I would allow in making a joint. I usually work well within that. Missing by 3.3333mm on a feature specified to be 6.3333mm is an abject failure. That’s an error of over 50%.

PVA wood glue contracts as it dries, so it doesn’t fill gaps well. The looser the fit, the weaker the joint. I aim for a friction fit. Most of the time with glue on the mating surfaces the joint must be tapped together with a mallet.

Your reading comprehension is what I’ve come to expect from Lemmy. I repeat myself for the slow kids at the back: because I often have to divide my work into halves, thirds or quarters and rarely into tenths, fractional inches in powers of two are more convenient in this application.

Remember folks, in metric, 5/2=2.5, 5/3=doesn’t matter because “tolerances.” That’s one of those excuses I was talking about.

Do keep trying to lecture me about something you don’t even slightly understand. It’s adorable.

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