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Enhanced Radius Function (Auto-R)
The EM250 Auto-R function operates on the work-to-zero principle for the machining an radius. This mechanism if
far more flexible than the R-Function but can be more complex to configure as the operator may need to perform
some trigonometric calculations in order to determine some of the parameters needed by the function.
To best demonstrate these methods let us consider the part below as by way of example.
Set the Z-STEP to the required machining mode using the
Move the Tool to the start of the ARC. It is also possible to machine in the Z plane on a 2-axes XY DRO on Mills. To do
this we will need to use the Knee axis Z-dial for as a manual reference.
Enter the Auto-R Fⁿ by pressing the
key. The key LED will be illuminated showing the function is now active.
.
ABS
.
.
X
Z
Y
Parameter
Value
Plane of Operation
XZ
X: 20.000
Centre Co-ords
Z: 20.000
Radius of ARC
200mm
X: 20.000
ARC Start
Z: 0.000
X: 40.000
ARC End
Z: 20.000
Tool Diameter
6mm
Tool Compensation R+
Max Step
0.3mm
key BEFORE entering the R-Function
- 33 -
When the tool has been
positioned at the start of
the ARC zero the Z-axis
dial (2-axis DRO Only)
ARC
XY
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