By the way the3 version is Emc/axis 2.1.3.
Jack

Jack Ensor wrote:

Thanks for the suggestion of trying 0.0 backlash. That cut the error down significantly. Why should that make such a difference? Backlash compensation error shouldn't be cumulative , should it? I am now getting from .0101 to .0002 variance. Still more than I would like to see.

Jack Ensor

Chris Radek wrote:

On Sun, May 13, 2007 at 09:57:08AM -0400, Jack Ensor wrote:


However when I run axis.ngc, the ending x and y positions are at variance from the commanded positions and each time I run the program (after first homing), I get different variances. I calculated the variances by subtracting the actual position from the commanded position and x can vary from -.148 to +.009, while y can vary from .063 to .008.
What version of EMC2 are you using (Help/About will tell you)

Have you tried without backlash compensation (BACKLASH=0.0)?

Chris




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