Renishaw NC1 Programming Manual page 84

Temperature compensation tracking
R03=c c= Zero offset number used to track axis growth due to
temperature effects. This must be the same as that
used with the R02 input for calibration
Refer to the R03=c input description in "Calibrating the
NC1" (page 32) for controller/offset options.
R06=k k= Reference length of the calibration tool.
R11=h h= Tolerance for the maximum variation of temperature
changes.
Default value: No tolerance check.
R17=q q= Overtravel distance and radial clearance.
For details, see "Setting-data subroutine L9760" on
page 13.
Default value: 5.0 mm (0.197 in)
R18=r r= Reference diameter of the calibration tool.
R19=s s= Spindle speed at which calibration takes place. For
details, see "Setting-data subroutine L9760" on page
13.
Default value: 3150 rev/min
R25=y y= Radial step-over for length calibration.
This is the offset across the beam at which
measurement takes place. The tool always comes
down first on the beam centre-line.
Default value: On-centre
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