Thread tapping with spindle actual positions

When tapping a thread, the spindle speed may tend to deviate under load. In order to execute thread tapping in such cases, the movement of the linear axes can be directly coupled to the spindle's actual positions.

Release Note

This function is available as of Build V3.01.3080.04.

The function is activated either with P-CHAN-00761 or with the NC command #TURN[TAPPING_ACT_POS=1 …]

Example

Thread tapping with spindle actual positions

Set the following parameters:

tapping.use_actual_position     1   ( P-CHAN-00761 )

tapping.n_cycles                5   ( P-CHAN-00762 )

NC program

%tapping.nc

; tapping command speed S=200rpm,
; right-hand thread with 1.5mm pitch

N05 G0 Z10 X0

; thread tapping with unfiltered actual positions

N10 M19 S.POS=0 M3 S1000

N20 #TURN[TAPPING_ACT_POS=1 TAPPING_N_CYCLES=0]

N30 G63 Z-150 F300 S200

N40 G63 Z10 S-200

N50 G0 X20

; tapping with filtered actual positions

N60 M19 S.POS=0 M3 S1000

N70 #TURN[TAPPING_N_CYCLES=5]

N80 G331 Z-150 K1.5 S200

N90 G332 Z10 K1.5 S200

N100 G0 X40

; tapping with command positions

N110 M19 S.POS=0 M3 S1000

N120 #TURN[TAPPING_ACT_POS=0]

N130 G63 Z-150 F300 S200

N140 G63 Z10 S-200

N160 M30