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Building the most accurate DIY CNC lathe in the world [video]

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177 points pillars | 1 comments | 03 Sep 25 13:47 UTC | HN request time: 0s | source
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rfrey ◴[03 Sep 25 14:50 UTC] No.45116493[source]▶
People interested in this might also appreciate this small channel: a no-holds-barred 5 axis machine with expected sub-micron precision. I've learned a lot about what kind of components are available when budget is not an issue (I'll bet this machine will cost 100k by the time it's done). https://www.youtube.com/@kasramehraky9283
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IAmBroom ◴[03 Sep 25 17:02 UTC] No.45118093[source]▶
Those are the kind of CNC kept in isolated rooms, and covered in gold foil to reflect heat. No humans allowed during the measurement cycle.
replies(1): >>45122347 #
1. msds ◴[04 Sep 25 01:19 UTC] No.45122347[source]▶
No, good thermal management with a chiller, active thermal compensation, and glass scales make um precision on that scale reasonable. 10-100x better? Sure, you’re getting into machines where the room to keep them happy is significantly more expensive that the machine…