Acu-Rite CNC 3500i user manual Drill Bolt Hole Cycle

7.2 Canned Cycles

Drill Bolt Hole Cycle

Use the drill bolt hole cycle to drill a partial or full bolt circle. A drill cycle must be programmed prior to the bolt hole cycle. You can move around the pattern clockwise or counterclockwise, either point to point or along a radius. The cycle calculates the hole locations, and uses the Polar Coordinate System for dimensions.

Field	Code	Description
Diameter	D	Diameter of bolt circle. Tool normally
		moves from hole to hole in a CCW (positive)
		direction. For CW direction, D = negative.
		(Required)
StartAngle	A	Angle of the first hole. (Required)
#Holes	H	Number of holes in full bolt circle.
		(Required)
XCenter	X	Absolute X center of the bolt-circle.
		Defaults to current position.
Index	C	Rotates the Polar Coordinate System by
Angle		entered angle. Default: 0 degrees (3
		o'clock). CCW = positive, CW = negative.
YCenter	Y	Absolute Y center of the bolt-circle.
		Defaults to current position.
RadialPath	R	Move from hole to hole on a radius. Set to
		1.0 to activate circular path between holes.
		Defaults to straight-line path between
		holes.
EndAngle	B	Angle of the last hole. If there is no B value,
		the CNC executes a full bolt hole circle.

G-code format: G79

154 7 Programming: Canned Cycles, sub-programs