Acu-Rite CNC 3500i user manual Absolute Zero Set

7.1 Explaining Basic Cycles

Absolute Zero Set

Absolute Zero is the X0, Y0, Z0 position for absolute dimensions. Refer to chapter 3 "Manual Data Input (MDI)" on page 38 for more information on Absolute positioning.

A SetZero block sets the Absolute Zero Reference of one or more axes to a new position. Use SetZero in one of two ways: to reset X0 Y0 Z0 or to preset the current location to the specified coordinates.

In axis presetting, non-zero values set the current machine position to the specified coordinates. In axis resetting, X0, Y0 and Z0 values set the current machine position as the new Absolute Zero Reference.

In G-code programming, the equivalent G92 (Absolute Zero) cancels Mirroring (G100), Axis Rotation (G68), and Axis Scaling (G72).

Select the More Milling button, and then "SetZero" from the pop-up menu.

Conversational format: SetZero

G-code format: G92

It is recommended to use Fixture Offset instead of Absolute Zero. Absolute Zero should only be used in programs. If programmed in MDI, the Absolute Zero cancelled when the 3500i is switched to Auto.

Field	Code	Description
X	X	The new X-Axis coordinate to assign to the
		current machine position. Use a value of "0"
		to define the position as the new Absolute
		Zero Reference.
Y	Y	The new Y-Axis coordinate to assign to the
		current machine position. Use a value of "0"
		to define the position as the new Absolute
		Zero Reference.
Z	Z	The new Z-Axis coordinate to assign to the
		current machine position. Use a value of "0"
		to define the position as the new Absolute
		Zero Reference.

138 7 Programming: Canned Cycles, sub-programs