 # What is the different between G and \$ value

\$11=0.010 (junction deviation, mm) \$12=0.002 (arc tolerance, mm) \$13=0 (report inches, bool) \$20=0 (soft limits, bool) \$21=0 (hard limits, bool) \$22=0 (homing cycle, bool) \$23=0 (homing dir invert mask:00000000) \$24=25.000 (homing feed, mm/min) \$25=500.000 (homing seek, mm/min) \$26=250 (homing debounce, msec) \$27=1.000 (homing pull-off, mm) \$100=298.900 (x, step/mm) \$101=198.779 (y, step/mm) \$102=400.000 (z, step/mm) \$110=300.000 (x max rate, mm/min) \$111=1500.000 (y max rate, mm/min) \$112=1500.000 (z max rate, mm/min) \$120=15.000 (x accel, mm/sec^2) \$121=10.000 (y accel, mm/sec^2) \$122=10.000 (z accel, mm/sec^2) \$130=200.000 (x max travel, mm) \$131=200.000 (y max travel, mm) \$132=200.000 (z max travel, mm) [`G1`](http://linuxcnc.org/docs/html/gcode/g-code.html#gcode:g1) or [`G0`](http://linuxcnc.org/docs/html/gcode/g-code.html#gcode:g0) commands to Grbl. You should see your stepper motor rotating. If you are having trouble with your stepper motors, try the following:

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