17 Canned Cycles for Drilling

spindle re-started in direction M3

17.1.4Canned Cycle Cancel (G80)

The code G80 will cancel the cycle state, the cycle variables will be deleted. Z and R will assume incremental 0 value (the rest of variables will assume 0).

With coordinates programmed in block G80 but no other instruction is issued, the movement will be carried out according to the interpolation code in effect prior to activation of the cycle (G code group 1).

17.1.5 Drilling, Spot Boring Cycle (G81)

Fig. 17.1.5-1

The variables used in the cycle are

G17 G81 Xp__ Yp__ Zp__ R__ F__ L__

G18 G81 Zp__ Xp__ Yp__ R__ F__ L__

G19 G81 Yp__ Zp__ Xp__ R__ F__ L__

The operations of the cycle are

1.rapid-traverse positioning in the selected plane

2.-

3.rapid-traverse movement as far as point R

4.-

5.drilling as far as the point Z, with feed F

6.-

7.with G99, retraction to point R, in rapid traverse

8.-

9.with G98, rapid-traverse retraction to the initial point

10.-

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NCT Group 2000M, 99M manual Canned Cycle Cancel G80, Drilling, Spot Boring Cycle G81