2017-02-25 21:17 GMT+01:00 Tomaz T. <tomaz_...@hotmail.com>: > I'm in doing a little research on replacing "low pitch" slow ballscrews > with faster R&P and found this anti backlash system: > > > https://www.damencnc.com/en/components/mechanical-parts/rack---pinion/320 > > > > Does anyone here use it, and is it worth of investment compared to single > pinion "standard" drive? > > > Reason for replacing ballscrews is also extension of axis and dusty > environment, as in majority I'm milling MDF and plywood, where I can > sacrifice some accuracy for more speed. >
Is that really needed? The rack and pinions I've seen are without backlash. The gear is in full contact on both sides and is pushed downwards all the time. Me on the other hand is renovating my eight year old machine and will replace the mid screw with belts on each side (I am experiencing that the big portal is loosing its parallel alignment when cutting out on the sides). One motor with a shaft going to both ends. Belt wheels in both ends. Fixed mounted belts. Same design as this: https://s-media-cache-ak0.pinimg.com/originals/47/57/37/4757374f7842375071cfda7c248e2fa9.jpg /Sven ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
