Programming instructions
 ADT-CNC4620 Programming Manual 
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Function description: 
1)  The position of thee cutting start (A1) should be specified before grooving cycle, or else the system takes 
current point as the cutting start. 
2)  In the first grooving cycle, the tool isn’t retreated in axial direction when cut to the groove 
bottom (B1) 
3)  If Z/W isn’t specified or movement is 0, the system considers Q(Δk) as 0 no matter whether 
Q(Δk) is specified. In this case, only X axis acts and cuts to groove end, and the tool isn’t 
retreated in axial direction. 
4)  Pecking style tool feeding cycle 
B1 end point      A1 start point 
Related parameters and notice:  
1)  If e is 0, the system doesn’t have radial tool retreating action. 
2)  The system reports error if X/U isn’t specified or the movement is 0. 
3)  If Δi is 0 or larger than entire groove depth (U/2), the system reports error. 
4)  The system reports error if Z/W is specified but Δk is larger than z axis movement 
(W). If Δk is 0, it can be used for radial cycle drilling 
5)  If Δd is 0, the tool isn’t retreated in axial direction; if Δd is larger than Δk, the 
system reports error. 
G75 processing example: Fig. 3-11-12 
Fig. 3-11-12 G75 Instruction Cutting Diagrma 
O7501 
G00X100Z0 
M03S800T0101 
G01X80Z-10 
G75R3 
G75X30Z-30P5Q2R1F500 
G00X100Z20 
M30 










