This, and the related facts that metric threads are an abortion - there is a reason to have coarse and fine thread series ! And metric gearing sucks balls, it is like Fanuc, upside-down and backwards.My biggest beef with going metric, is that the important unit .01mm is too coarse and .001mm is too fine. This is akin to a lathe mounted DRO that doesn't have the correct range of resolution for the work at hand, and where tenths of a thou matter. So the mental switching back and forth takes practice, and if you have to throw in reading machine scales graduated in the 'other' system, well, you're going to make 3.14 times as many errors as somebody who doesn't have to do that.
My biggest beef with going metric, is that the important unit .01mm is too coarse and .001mm is too fine. This is akin to a lathe mounted DRO that doesn't have the correct range of resolution for the work at hand, and where tenths of a thou matter. So the mental switching back and forth takes practice, and if you have to throw in reading machine scales graduated in the 'other' system, well, you're going to make 3.14 times as many errors as somebody who doesn't have to do that.
This, and the related facts that metric threads are an abortion - there is a reason to have coarse and fine thread series ! And metric gearing sucks balls, it is like Fanuc, upside-down and backwards.
This, and the related facts that metric threads are an abortion - there is a reason to have coarse and fine thread series ! And metric gearing sucks balls, it is like Fanuc, upside-down and backwards.
Inches developed organically to fill a need. They work extremely well in the physical world. The metric system developed in a french brain, based on the cockamamie idea that everything should be measured based in the cirrcumference of the planet. Like, this is supposed to be better ? It's crazy.
Sure, people can adapt to anything. We could measure stuff based on the length of a standard banana if we wanted. But why ? To please a frog ?
It's dumb. And in practice, a step backwards.
Yeah, and they get used about as much as BSF and BSW ... Whitworth, grows on hardware store shelves, mmm-hmmThere are metric coarse and fine thread series. Just like BSW and BSF in the civilised world and whetever weird system the colonials use in their little bit of the world
First of all I am retired so I don't give a s**t, I was taught Imperial at school but learnt metric in the early 70's, I must be a genius because I can use both if required.Just to let you know .01mm is .0004", too coarse what a load of typical BS!!!!
Tony
I'm making parts for some electronics guys, one of them has got it into his head that everything should be as metric as possible. Metric threads I'm ok with as the assemblies are going to Mexico.
But making parts (for instance) that are 75mm wide and 10mm thick are a pita. He's getting parts from 3.0 x 3/8 barstock, whether he likes it or not. As I'm doing the assembly he's not going to know. There's a vast number of parts that could have been made from imperial plate or barstock, I've changed sizes where I can.
... Just to let you know .01mm is .0004", too coarse what a load of typical BS!!!!
Tony
Assbolutely ...But you gotta do what you gotta do.
You can't fire me, I quit !Your fired, punch out your card and take it to that office.
A bit OT, but a designer isn't a designer unless he/she knows what size stock comes in and how much you have to take off to clean it up. Whatever system he/she works in, the cost of having to go up a stock size, in raw materials and in process time, should be understood before insisting on stupid dimensions. Here in the USA there's an extra hidden cost involved in going full metric.
Notice
This website or its third-party tools process personal data (e.g. browsing data or IP addresses) and use cookies or other identifiers, which are necessary for its functioning and required to achieve the purposes illustrated in the cookie policy. To learn more, please refer to the cookie policy. In case of sale of your personal information, you may opt out by sending us an email via our Contact Us page. To find out more about the categories of personal information collected and the purposes for which such information will be used, please refer to our privacy policy. You accept the use of cookies or other identifiers by closing or dismissing this notice, by scrolling this page, by clicking a link or button or by continuing to browse otherwise.