Acu-Rite CNC 3500i user manual Face Mill Cycle, 159

Face Mill Cycle

Facing cycles simplify the programming required to face the surface of a part.

Execution begins one tool radius from the D and E (start point). The selected stepover determines the approach axes.

Facing cycles can start in any corner of the surface and cut in any direction, depending on the sign (+/-) of the X (Length) and A (Width) values. Program a slightly oversized X and A to ensure complete facing of the surface.

At the end of the cycle, the tool rapids to H, then rapids back to D and E (start position).

Field	Code	Description
Length	X	The feedrate at which the tool will "ramp"
		into the pocket in all three axes. Default is
		last programmed feedrate.
Width	Y	Feedrate used during finish passes. Default
		is last programmed feedrate.
StartHgt	H	The Absolute Z position before beginning
		the facing cycle. This must be 0.1” (or 2
		mm) above the surface. Executed in rapid.
		(Required)
ZDepth	Z	Absolute depth of the finished surface.
		(Required)
		NOTE: ZDepth must be lower than
		StartHgt. StartHgt is 0.1” (2.0 mm) above
		the work surface.
XStepOver	A	Width of cut in the X-axis direction. When
		you do not enter a value, the CNC defaults
		to 70% of the active tool radius. Maximum
		step-over permitted is 70% of the active
		tool radius.
YStepOver	B	Width of cut in the Y-axis direction. When
		you do not enter a value, the CNC defaults
		to 70% of the active tool radius. Maximum
		stepover permitted is 70% of the active tool
		radius.
Feed	F	Feedrate used in cycle.

7.2 Canned Cycles

ACU-RITE 3500i 159