Fadal L93NN Bolt Hole Circle BHC Fixed Subroutine

Fadal L93NN Bolt Hole Circle (BHC)
Fadal L93NN subroutine is used for pattern drilling in a circle usually called Bolt Hole Circle.

Contents

Programming

N5 L93NN R0... R1... R2...

Parameter	Description
R0	Direction and distance in X-axis from starting position to center of circle.
R1	Direction and distance in Y-axis from starting position to center of circle.
R2	Angular step between holes. Positive angular step will move CCW around the bolt circle. Negative angular step will move CW around the bolt circle.
NN	Number of holes to be drilled. E.g. L9302 will drill 2 holes.

N1 O1
N2 G0 G90 S2000 M3 X0 Y0
N3 H1 M7 Z.1
N4 G81 G99 R0+.1 Z-1.0 F10.
N5 L9308 R0+0 R1-1.5 R2-45.
N6 M5 M9
N7 G80