Efficient G72 Programming: Drilling Evenly Spaced Bolt Holes Along an Angle

G72 Bolt Holes Along an Angle command makes it easy for a cnc machinists to Drill/Bore/Tap evenly spaced holes along an angle.

G72 Bolt Holes Along an Angle

G72 is non-modal G-code.

G72 Bolt Holes Along an Angle Format

G72 I J L
I – Distance between bolt holes along an angle
J – Angle of holes from three o’clock, 0 to 360.0 degrees CCW.
L – Number of evenly spaced holes along an angle

A minus sign with J will reverse angle CW.
G72 code drills L holes in a straight line at the specified angle (J).

For a G72 to work correctly, a canned cycle must be active to perform the desired drill, tap or bore cycle.
Canned cycles G73, G74, G76, G77, or G81-G89 can be used with G72 bolt hole along an angle command.

CNC G72 Bolt Hole Angles – Sample Code for Accurate Drilling Haas CNC G71 Bolt Hole Arc Command – Practical Example for Efficient Hole Drilling

CNC Machine

Industrial robot

Industrial equipment