Re: [CAD_CAM_EDM_DRO] Re: emc with camtronics just too strange

> --- In CAD_CAM_EDM_DRO@y..., Jon Elson <elson@p...> wrote:
>
> > Why are you so concerned with .001" steps? Can your machine really
> > hold such fine accuracy?
> >
>
> The problem is that if I have a random error of +/- .003 on small
> moves when that is compounded over inches

I may be jumping in here without knowing the full background of the
thread, but the error due to step quantatization is not cumulative,
unless your system misses steps now and then, which is a problem you
really should fix no matter what the step size. Think of it just like
rounding a decimal place off all your numbers - the error is local
only.

Chris Stratton

-------------------------------------------------
Christopher C. Stratton
Engineer, Instrument Maker, and Horn Player
ccs@... 617 628 1062
http://web.mit.edu/~stratton/www/brassbuild.html