07.90 1 Introduction
1.11 Reference points on machine and workpiece
1.11 Reference points on machine and workpiece
The actual axis values of different actual value systems must be measured depending on the
kind of measurement taken. For determining the tool length, for instance, it is advisable to use
the machine actual value, while for measuring workpiece dimensions and for determining tool
wear compensation it is more advantageous to use the workpiece zero point (Fig. 1.23). The
machine actual value is the dimension between the machine zero point and the tool reference
point.
Fig. 1.23 Reference points on machine and workpiece
F
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Spindle chuck
M W
M'
M = Machine zero point
M' = Machine zero point displaced by DRF
T = Control zero point by means of RESET displacement
W = Workpiece zero point
F = Tool reference point
END OF SECTION
©
Siemens AG 1990 All Rights Reserved 6FC5197- AB70 1–45
SINUMERIK 840/850/880 (BN)
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