HEIDENHAIN iTNC 530 HSCI - Recommendation for Transformation Chain

684 HEIDENHAIN Technical Manual iTNC 530 HSCI
Reduced error model using a position error of a linear axis (e.g. X axis) –
Recommendation for transformation chain:
The position errors calculated and averaged from several axis positions are
entered here.
The position error X0X cannot be corrected in machine parameter MP960.
Inverse transformation is necessary to be able to compensate one specific
axis (if information about all axes is not available, for example). Describing this
axis therefore restores the ideal kinematics model.
Reduced error model using a component error (with integrated position
errors) of a linear axis (e.g. X axis) – Recommendation for transformation
chain:
The error EXX can be corrected conventionally in the COM file. The position
errors B0X and C0X that are relative to the home position of the X axis are
integrated in the compensation values of the COM file (component errors).
These values must be re-transformed to be able to return to the ideal model
after the definition of the axis (MachAxis X). This reduced error model has the
disadvantage that the position errors cannot be shown separately from the
component errors.
NR DOC KEY AXIS COORD COMPTAB
...
B0X Trans B xxx
C0X Trans C xxx
MachAxis X
-C0X Trans C -xxx
-B0X Trans B -xxx
...
[END]
NR DOC KEY AXIS COORD COMPTAB
...
EYX Trans Y A..C2
EZX Trans Z A..C3
EAX and A0X Trans A A..C4
EBX and B0X Trans B A..C5
ECX and B0X Trans C A..C6
MachAxis X
-ECX where X=0 Trans C -xxx
-EBX where X=0 Trans B -xxx
-EAX where X=0 Trans A -xxx
-EZX where X=0 Trans Z -xxx
-EYX where X=0 Trans Y -xxx
...
[END]