Originally Posted by
DHSYCNC
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if module of gear is1.25, rate of reduce 1:2, pulse equivalency is 0.0216mm/step. but we use ball screw, it's 0.0025mm/step. surface is quite different. we had compared two kind of results. if only one result engraving sample, you can't recognize it. On other hand, gear has gap when direction is oppisite, the gap will cause result worse. we had made test by engraving stone, wood, soft and hard wood. more pulse equivalency is small, result is fine.