G70 BOLT HOLE CYCLE HASS

CNC PROGRAMMING

G70 Bolt Hole Circle :

I - Radius
* J - Starting angle (0 to 360.0 degrees CCW from horizontal;
or 3 o clock position)
L - Number of holes evenly spaced around the circle

*indicates optional

This non-modal G code must be used with one of the canned cycles G73, G74, G76, G77, or G81-G89. A canned cycle must be active so that at each position, a drill or tap function is performed. See also G-code Canned Cycles section.

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O60701 (G70 BOLT HOLE CIRCLE) ;
(G54 X0 Y0 is center of the circle ) ;
(Z0 is on the top of the part) ;
(T1 is a drill) ;
(BEGIN PREPARATION BLOCKS) ;
T1 M06 (Select tool 1) ;
G00 G90 G40 G49 G54 (Safe startup) ;
G00 G54 X0 Y0 (Rapid to 1st position) ;
S1000 M03 (Spindle on CW) ;
G43 H01 Z0.1 (Activate tool offset 1) ;
M08 (Coolant on) ;
(BEGIN CUTTING BLOCKS) ;
G81 G98 Z-1. R0.1 F15. L0 (Begin G81) ;
(L0 skip drilling X0 Y0 position) ;
G70 I5. J15. L12 (Begin G70) ;
(Drills 12 holes on a 10.0 in. diameter circle) ;
G80 (Canned Cycles off) ;
(BEGIN COMPLETION BLOCKS) ;
G00 Z0.1 M09 (Rapid retract, Coolant off) ;
G53 G49 Z0 M05 (Z home and Spindle off) ;
G53 Y0 (Y home) ;
M30 (End program) ;
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