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17 Canned Cycles for Drilling
–spindle
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.
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.
2.-
3.
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,
10.-
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