8-2 (E)
8. Applied Functions
LH71A / LH72
8-1-1. Bolt Hole Circle Function
Equidistant holes can be opened along the perimeter of a designated diameter. This function is available for
2-axis and 3-axis models only.
a) Equally-spaced holes along the overall circumference
Parameter input
1 Press the key so that BOLT flashes, and then press the key. (BOLT lights up)
2 Enter the diameter , and then press the key.
Make the entry based on the input units (mm (inch)) and minimum input resolution.
3 Enter the number of holes , and then press the key. Input range: 2 to 360 holes
4 Enter the starting angle , and then press the key. Input range: 0.00 to 359.99 degrees
5 Press the key when the ending angle and the ending angle value, which equal the
starting angle value, are displayed.
Execution
1 Move to the center (start position) of the bolt hole circle, and then press the key to execute.
2 The position of the No. 1 hole is displayed.
3 Move the machine to display “0”.
4 Press key and repeat above procedures up to the number of holes.
5 After the final hole has been formed, press the key. is displayed, and the current values are
displayed.
<Repeat operation>
• Return to the center of the bolt hole circle again.
• Press key to repeat the process with same parameters.
X
Y
No. 1
No. 2
No. 3
No. 4
90˚
90˚
90˚
90˚
φ100
0˚
Center
Starting angle,
ending angle
X
Y
No. 1
No. 2
45˚
No. 3
No. 4
No. 8
45˚
45˚
45˚
45˚
45˚
45˚
45˚
No. 5
No. 6
No. 7
30˚
Center
Starting angle,
ending angle
L Example a-1
Parameter
Diameter : 100 mm
Number of holes : 4
Starting angle : 0°
Ending angle : 0°
L Example a-2
Parameter
Diameter : 100 mm
Number of holes : 8
Starting angle : 30°
Ending angle : 30°
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