840D/828D SINUMERIK Operate Page 7
B510
B510
Notes
For the explanation of the scaling instruction the machining of similar
washers as in section 2.
These are smaller in both axes. The evaluated scaling factors are 0,737 in
diameter and 0,75 for the Z-axis.
Generally valid formula: Scaling factor = Dimension after scaling,
divided by dimension after scaling
28 / 38 = 0,737
Note
The raw material has a diameter of 30 mm.
The overhang is to be at least 40 mm. Again the parting tool of width 3 mm
is used.
Washer 2
In the editor extract the scaling takes place already before the tool change.
Note:
Care must be taken that the tool carrier now no longer traverses to the
same physical point as in the unscaled coordinate system, since the scal-
ing acts in all directions.
The complete program extract is shown in the summary.
The technology remains the same as for washer 1,
only the scaling is added to the program.
N10 G18 G54 G64 LIMS=4000
N20 SCALE X0.737 Z0.737 ; Scaling
N30 LBL14:
N40 G00 X300 Z400
N50 T1 ; Roughing tool
N60 G96 S160 F0.2 M4 D1
N70 G00 X44 Z0.2 M8
N80 G01 X-1.6
N90 Z3
N100 G00 G42 X14 Z2
N110 G01 Z0
N120 X38 RND=1.5
N130 Z-8
N140 X42
N150 G00 G40 X200 Z300
N160 T10 ; Core drill Dm. 16
Section 4
Scaling of the coordinate system
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