this post was submitted on 05 Feb 2025
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Sure. I'm not a professional machinist. I have worked on roofs and all sheet metal things are in mm. I have even worked for a company that makes those metal things and as a customer for another one. I also was by far the best at technical drawing in school, not to brag. And all the schematics for things I have seen are in mm, for example https://www.iclarified.com/images/news/48931/228250/228250-1280.png . Disclaimer, all the schematics that are not in, ugh, inches (or architecture).
Sure, if I made something for someone they can give me dimensions in Smoots for all I care. But I would transform it into mm, and would never buy tools that don't use mm.
For context, I am not in an english speaking country nor Myanmar.
Edit: Actually I have seen house schematics in mm as well. I thing they now give out in m, but use mm internally (depending on architecture firm).
When I asked the boss, who has been in the business for a couple generations, why it says here 4000 instead of 4m, he said what I am telling you. So you don't mix up measurements.
You're right. People don't use the system properly, but that's how a lot of people do it is what I was saying. I can see how that would grind your gears (pun somewhat intended) as a machinist, since specs and tolerances are especially important in your line of work as I understand it