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i am trying to make a very precise machine which will use a very precise linear encoder (nm range) and very precise servo motor. I want to use servo motor rotation to precisely move a "thing" in translation (i need 0,5 micron precision at least. What transfer would you recommend for this kinda of problem? I was thinking rack and pinion option with gear translation for precision. But I am worried that big speed and tolerance of gears could be a problem? Thanks

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  • $\begingroup$ typically you'd buy a laboratory type linear stage for that, unless you know what you're doing $\endgroup$
    – Pete W
    Mar 6 at 1:28
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    $\begingroup$ JWST mirror actuator ... youtu.be/5MxH1sfJLBQ?si=OK3AC2qjUuT7g_WY $\endgroup$
    – jsotola
    Mar 6 at 17:44

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