Tool length measurement – Definition from CNC Dictionary

Compensating for the difference in length between the tool assumed during programming and the tool to be used for actual machining.

Shifting a specified tool along the controlled axis.

Offset value used by the tool length compensation, cutter compensation, and tool offset functions.

Retracting a tool from the workpiece, allowing the tool to be exchanged during machining (if broken) or the state of machining to be checked, and subsequently repositioning the tool to…

CNC memory used to store tool offset values.

Number preceded by the H or D address to specify a tool offset value.

G43 Tool Length Compensation positive With G43 a value from the offset register (OFFSET) can be called up and added to tool length. To all following Z movements (with active…

Selca G48 Recalls and enables tool length compensation Programming G48 [K…] [I…] Parameters Parameter Description K compensation number. I finish stock value. Note: program G48 I0 to disable the active…

Selca G817 Tool length offset on an axis non-orthogonal to the machining plane Programming G817 Axis Parameters Parameter Description Axis name of the machine axis to which the compensation is…

The brand name for Siemens numerical controls.The name of the organizational unit of Siemens that designs and manufacturers numerical controls.

Checking whether the total number of characters in a block (starting immediately after an end–of–block code and ending at the next end–of–block code) is even or odd.

Checking whether the total number of 1 bits in a character is even or odd.

Program that can be called repeatedly by the control section of another program.

A machine tool which does primarily turning, but which has live tooling (a spindle on the turret) for doing milling operations. From a software point of view, a turning center…

The part of a tool offset value used to compensate for tool wear.

Setting a forbidden area in the CNC for a tool, decelerating the tool to a stop, and issuing an alarm if the tool is about to enter the forbidden area.

See “Stored stroke check”

Stroke limit check performed before the movement specified in a block is started.

When doing any operation on a lathe, all parameters are critical and should not be overlooked. There are industry standards and recommendations for SFM, feedrates, insert geometry, workholding, etc., that…

;The main program would call this macro five times, ;each time specifying the depth and length required. ;macro variables would handle the length in the Y direction ;and depth in…