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(info: backlash measurement utility, use with dial indicator)
o<backlash> sub
#<axis>     = #1 (= 0 0=x 1=y 2=z)
#<p1>       = #2 (= 1.1)
#<p2>       = #3 (= 2)
#<fraction> = #4 (= 0.1)
#<feedrate> = #5 (= 10)
#<count>    = #6 (= 10)

o<l10> if [#<p1> GT #<p2>]
         #<vmin> = #<p2>
         #<vmax> = #<p1>
o<l10> else
         #<vmin> = #<p1>
         #<vmax> = #<p2>
o<l10> endif

       #<delv> = [#<vmax> - #<vmin>]
o<l20> if [ABS[#<delv>] GT 0.9] (protect indicator)
         (debug, backlash: move too big for indicator #<delv> - EXITING)
         (print, backlash: move too big for indicator #<delv> - EXITING)
         (AXIS,notify, backlash: move too big for indicator - EXITING)
         m2
o<l20> endif
o<l30> if [[#<fraction> GT .99] OR [#<fraction> LT .01]]
         (debug, backlash: bad fraction: #<fraction> - EXITING)
         (print, backlash: bad fraction: #<fraction> - EXITING)
         (AXIS,notify, bad fraction - EXITING)
         m2
o<l30> endif

       #<vzero> = [#<vmin> + [#<vmax> - #<vmin>] * #<fraction>]
       #<ok> = 0
       f #<feedrate> g1

o<whl> while [#<count> GT 0]
o<xxx>   if [#<axis> EQ 0]
           #<ok> = 1
           x #<vmin>
           x #<vzero>
           (debug, set indicator ZERO, S to continue)
           m0 (mandatory stop)
           M110
           x #<vmax>
           x #<vzero>
o<xxx>   endif
o<yyy>   if [#<axis> EQ 1]
           #<ok> = 1
           y #<vmin>
           y #<vzero>
           (debug, set indicator ZERO, S to continue)
           m0 (mandatory stop)
           M110
           y #<vmax>
           y #<vzero>
o<yyy>   endif
o<zzz>   if [#<axis> EQ 2]
           #<ok> = 1
           z #<vmin>
           z #<vzero>
           (debug, set indicator ZERO, S to continue)
           m0 (mandatory stop)
           M110
           z #<vmax>
           z #<vzero>
o<zzz>   endif
o<ccc>   if [#<axis> EQ 5]
           #<ok> = 1
           c #<vmin>
           c #<vzero>
           (debug, set indicator ZERO, S to continue)
           m0 (mandatory stop)
           M110
           c #<vmax>
           c #<vzero>
o<ccc>   endif

         #<count> = [#<count> - 1]
         (debug, READ indicator, S to continue)
         m0 (mandatory stop)
         M110
o<whl> endwhile

o<l60> if [#<ok> EQ 0]
         (debug, bad axis specifier: #<axis>)
         (print, bad axis specifier: #<axis>)
o<l60> endif

o<backlash> endsub