Thanks Jon for the explanation. Andy
Jon Elson wrote: > Andrew Ayre wrote: >> Hi Rayh, >> >> Can you tell me or point me to a website that describes the process for >> measuring backlash? Thanks. > Assuming the screws are mounted on a machine, you put a dial > indicator (preferably one that reads out in .0001" units -- they > call that a "tenths reading" indicator) across the slide and > step the control back and forth, seeing how many units you need > to move the CNC control before the axis actually moves. If you > want to know the backlash on a ballscrew and nut set sitting > alone on a table, you'd have to build some sort of test rig to > evaluate it. You'd need to hold the screw rigid and prevent the > nut from turning, and then apply force to the nut and read > linear free play with the dial indicator. > > Jon -- Andy PGP Key ID: 0x67090A54 ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
