CNC Programming

Numerical control (NC) refers to the automation of machine tools that are operated by abstractly programmed commands encoded on a storage medium, as opposed to controlled manually via handwheels or levers, or mechanically automated via cams alone. The first NC machines were built in the 1940s and 1950s, based on existing tools that were modified with motors that moved the controls to follow points fed into the system on punched tape.

Canned Cycle for Drilling Cancel G80

3:57 AM  Unknown  

Canned Cycle for Drilling Cancel (G80):-

G80 cancels canned cycle.

Format:-
G80;
Explanations:-
                Canned cycle for drilling is canceled to perform normal operation. Point R and point Z are cleared.  Other drilling data is also canceled (cleared).

Examples:-
M51  ;                       Setting C–axis index mode ON
M3 S2000 ;               Rotating the drill
G00 X50.0 C0.0 ;       Positioning the drill along the X– and axes.
G83 Z–40.0 R–5.0 P500 F5.0 M31 ;   Drilling hole 1
C90.0 M31 ;              Drilling hole 2
C180.0 M31 ;            Drilling hole 3
C270.0 M31 ;            Drilling hole 4
G80 M05 ;    Canceling the drilling cycle and stopping drill rotation
M50 ;                        Setting C–axis index mode off

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