On Fri, 2007-12-07 at 12:46 -0600, Jon Elson wrote: > Kirk Wallace wrote: > > I jury rigged an encoder to the motor and it tunes fairly well now, but > > now the travel end points are affected by the backlash. I am looking at > > getting the MicroKinetics ballscrew kit. > > > > http://www.microkinetics.com/convkit.htm (at the bottom of the page) > > > > which appears to have adjustable double nuts. With zero backlash, it > > seems that it shouldn't matter whether I use the linear slide encoder or > > the shaft encoder, though my shaft encoder has much higher resolution. > > > > You were using a linear encoder with an Acme screw? No wonder > it didn't work. > > Jon
No, I have brand new ballscrews, but the dummy that ordered them (me) didn't insure that they had zero backlash. Anyone want to buy some barely used ballscrews? -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC lathe, Bridgeport mill conversion, doing XY now, Zubal lathe conversion pending) ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
