Anaheim DPJ72LC4, DPJ72LC3, DPJ72LC2 manual System Programming

	Section 4 System Programming 55
M06 T3	Pauses program, displays dialog informing
	operator to change to tool number 3

Note: For compatibility reasons, the T command can be used on any line prior to the M06 command; it does not need to be on the same line as M06.

Once the M06 command has set the current tool, the G43 command applies the proper offset to account for the current tool’s length as follows:

G43 Hn

where n is the tool number for the current tool.

The G43 command tells LC to shift all subsequent Z axis moves away from the workpiece (in the positive Z direction) by an offset amount. The offset amount is equal to the difference in lengths between the current tool when the G43 command is executed and the previous tool. LC uses the Length Offset values in the Tooling Setup dialog box to calculate the difference in lengths between two tools.

Example:
G43 H3	Shifts all subsequent Z axis moves away
	from the workpiece (in the positive Z
	direction) by the difference in lengths
	between tool number 3 and the previous tool

The G44 command is identical to the G43 command, except that it shifts all Z axis moves in the direction opposite from G43. Unless you are an experienced CNC programmer and know how to use G44 correctly, G43 is the preferred command.

The G49 command cancels tool length compensation. It removes any offset that LC has applied since the G-Code program began running.

When using tool length compensation there are several important things to keep in mind:

∙You must predefine all tools and tool lengths in the Tooling Setup dialog box.

∙It’s good practice to include an M06 tool change and a G43 compensation command for the first tool used, near the beginning of the G-Code program.

∙LC automatically cancels tool offset when it finishes processing a G- Code file, or during any operation that ends the current run of the G- Code file (such as resetting the program, opening a new program, and so on.) TO AVOID CRASHING THE MACHINE TOOL, IT IS

VERY IMPORTANT THAT YOU REMOVE THE CURRENT TOOL FROM THE SPINDLE WHENEVER LC CANCELS TOOL OFFSET.