Tool length compensation along the tool
Tool length compensation for a tool (tool axis) that is oriented in an arbitrary direc-
tion in three–dimensional space.
Tool length measurement Manual operation in which a reference tool and the tool to be measured are
pressed against a fixed point on the machine, one after the other, and the differ-
ence in length between the tools is set as a tool length offset value in the CNC.
Tool length/workpiece origin measure-
Measuring and setting the tool length/workpiece origin offset value and setting
Tool life management function Managing the life (number of uses or age) of tools in a group and automatically
selecting a new tool from the same group once the life of the current tool expires.
Tool normal direction handle feed Manually feeding a tool tilted by the rotation of a rotary axis in a direction normal
to the tool axis of that tool.
Tool nose radius compensation Compensation for any difference between a programmed tool position and the
actual nose contour of a tool having a circular nose. This compensation is per-
formed in a direction normal to the tool path.(lathes)
Tool offset Shifting a specified tool along the controlled axis.
Tool offset memory CNC memory used to store tool offset values.
Tool offset number Number preceded by the H or D address to specify a tool offset value.
Tool offset value Offset value used by the tool length compensation, cutter compensation, and
tool offset functions.
Tool path Tool path drawn using a specific point on a cutting tool.
Tool post interference check Operation in which the CNC detects a command that may cause the two tool
posts of the CNC lathe to interfere with each other and stops the tool posts before
they can collide.
Tool retract and recover 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 restart machining.
Tool selection function Number that follows the T address, used to select a tool on the machine.
Tool side compensation Offsetting, by the tool radius, a tool (tool axis) that is oriented in an arbitrary direc-
tion in three–dimensional space, so that the side of the tool coincides with the
programmed tool path.
Trace interlock function Stopping tracing control temporarily. This function is used to prevent the laser
nozzle from dropping into a processed hole when it passes that hole during trac-
Tracing control Control applied to maintain a constant distance between the workpiece surface
and nozzle tip. This function is used to enable stable processing by ensuring that
the focal position in the direction of the workpiece thickness remains constant.
Traverse inhibit limit function Stopping an axis and continuing automatic operation if an absolute value related
to that axis exceeds a preset value.
TV check 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
Twin table control Switching between synchronous, independent, and normal operation for two or
more specified axes.
Two–path control function Controlling the two tool posts on the CNC lathe simultaneously and indepen-
Warning message Message displayed on the screen to indicate when incorrect data has been
entered or an invalid operation has been performed from the CRT/MDI panel.
Waveform diagnosis function Displaying data relating to servo and spindle motor movement graphically.
Wear offset value The part of a tool offset value used to compensate for tool wear.
Word Set consisting of an address followed by a multiple–digit number. A word is a
component of a block.