What is the definition of "cutter compensation"?
An offset used on the mill that accounts for variations in tool diameter. Cutter compensation is necessary only for tools that travel in the X- or Y-axis.

Learn more about cutter compensation in the class Haas Mill: Entering Offsets 260 below.


CNC Controls: Haas Training


Class Information
Tooling U-SME classes are offered at the beginner, intermediate, and advanced levels. The typical class consists of 12 to 25 lessons and will take approximately one hour to complete.
Class Name:Haas Mill: Entering Offsets 260
Description:This class provides step-by-step instructions for adjusting offsets on the Haas mill during a production run. Includes Haas CNC Simulators.
Prerequisites: 310250 
Difficulty:Intermediate
Number of Lessons:17
Language:English, Spanish
 
Go to Catalog

Class Outline
  • Objectives
  • Offsets for Milling
  • Types of Offsets
  • Viewing Offsets
  • Navigating Offsets
  • Adjusting Work Offsets
  • Tool Length Offsets
  • Adjusting Tool Length Offsets: Manual
  • Adjusting Tool Length Offsets: TOOL OFFSET MEASURE
  • Cutter Compensation Offsets
  • Adjusting Cutter Compensation Offsets
  • Wear Offsets
  • Determining Wear Offsets
  • Adjusting Wear Offsets
  • Adjusting Coolant Offsets
  • Clearing Offsets
  • Summary
  
Class Objectives
  • Describe the main purpose of offsets.
  • Distinguish between the types of offsets available on the Haas mill.
  • Describe how the Haas control arranges the display of its offsets.
  • Explain the steps for navigating through various offsets.
  • Explain how to use the Haas control to change a work offset.
  • Describe the steps for determining a tool length offset.
  • Explain how to use the Haas control to change a tool length offset manually.
  • Explain how to use the Haas control to change a tool length offset with the TOOL OFFSET MEASURE feature.
  • Describe the steps for determining cutter compensation.
  • Explain how to use the Haas control to change a cutter compensation offset.
  • Describe the purpose of wear offsets.
  • Describe the steps for determining a wear offset.
  • Explain how to use the Haas control to change a wear offset.
  • Explain how to use the Haas control to enable coolant offsets.
  • Explain how to use the Haas control to clear all offsets.

Class Vocabulary

Vocabulary TermDefinition
.0001/.1 An increment key used to move the machine axes manually by using the HANDLE or the jog keys. .0001 indicates the amount of movement per HANDLE click, while .1 indicates the jog feed rate in inches per minute when using the jog keys.
.001/1. An increment key used to move the machine axes manually by using the HANDLE or the jog keys. .001 indicates the amount of movement per HANDLE click, while 1. indicates the jog feed rate in inches per minute when using the jog keys.
.01/10. An increment key used to move the machine axes manually by using the HANDLE or the jog keys. .01 indicates the amount of movement per HANDLE click, while 10. indicates the jog feed rate in inches per minute when using the jog keys.
1-2-3 block A precise metal block with dimensions measuring one, two, and three inches respectively. An operator can use a 1-2-3 block to touch off tools during setup.
A-axis A rotational axis that describes motion around the X-axis.
ATC FWD A MDI/DNC mode key that initiates the toolchanger and replaces the current tool with the next sequential tool.
B-axis A rotational axis that describes motion around the Y-axis.
center line An imaginary line that defines the center of a symmetrical part or tool.
Chip Load The thickness of a chip that is removed by one cutting edge of the tool. Chip Load is also measured as feed per tooth.
coolant offset An offset that controls the position of the coolant spigot on some Haas machines.
CURNT COMDS The display key on the Haas control that shows fifteen lines of the current program, modal program values, and the position during runtime.
cutter compensation An offset used on the mill that accounts for variations in tool diameter. Cutter compensation is necessary only for tools that travel in the X- or Y-axis.
diameter The distance from one edge of the circle to the opposite end through the center. The diameter is always twice the size of the radius.
ERASE PROG A key in the LIST PROG mode key row that clears the last MDI line when in MDI mode.
external cut Cutting that takes place on the exterior surface of a part feature, such as an edge or boss. Oversized external cuts indicate a cutter that has not removed enough material.
gage line The imaginary line marking the portion of the toolholder that matches the bottom edge of the machine spindle.
HANDLE Part of the Haas control panel that moves the machine components along the axes. The handle "clicks" in controlled, measured increments that an operator selects on the keypad.
HANDLE JOG An operation mode key that allows for the manual operation of tool movement via the handwheel or jog buttons.
HOME A cursor key that moves a program quickly to its beginning or to the top of most displays.
homing The process of sending the mill's spindle to its machine zero position.
increment keys Keys that control the increments in which the machine will move when in HANDLE JOG mode. Includes .0001/.1; .001/1.; .01/10.; and .1/100.
internal cut Cutting that takes place on the interior surface of a part feature, such as a hole or a slot. Oversized internal cuts indicate a cutter that has removed too much material.
job sheet A document that includes all manufacturing specifications for a lot of parts.
lot The number of similar parts made with a particular tooling setup.
machine zero The position located at the farthest possible distance in a positive direction along the machine axes. This position is permanently set for each particular CNC machine.
MDI/DNC An operation mode key that lets an operator either enter and execute program data without disturbing stored data when pressed once, or execute programs from a centrally located computer storage device when pressed twice.
offset A numerical value stored in the CNC control that repositions machine components. Offsets are used to adjust for differences in tool geometry, part size, tool wear, etc.
OFFSET The display key on the Haas control that shows the various programmed offsets.
Parameter 206 SPIGOT POSITION. A parameter that controls the number of available spigot positions for use with coolant offsets.
part program A series of numerical instructions used by a CNC machine to perform the necessary sequence of operations to machine a specific workpiece.
program zero The position that acts as the origin for the part program of a particular workpiece. This position is unique to each workpiece design, and it is selected by the part programmer.
radius The distance from the center to the edge of a circle.
reference point The common surface used to touch off every tool added to the mill's toolchanger. A reference point ensures that the control compensates for all the varying tool lengths.
Setting 40 TOOL OFFSET MEASURE. A setting that selects how the tool size in the tool geometry and wear offset columns is recognized for cutter compensation. This setting can be set to either radius or diameter.
SPIGOT POSITION Parameter 206. A parameter that controls the number of available spigot positions for use with coolant offsets.
tolerance An unwanted but acceptable deviation from a given dimension. Tolerances indicate the allowable difference between a physical feature and its intended design.
tool geometry offset Any offset that adjusts machine components to compensate for the unique shape of a particular cutting tool. On the mill, the geometry offsets are tool length and cutter compensation offsets.
tool length offset An offset used on the mill that accounts for variations in tool length along the Z-axis. Each tool requires its own offset, which is measured from the tip of the tool to the gage line.
TOOL OFFSET MEASURE Setting 40. A setting that selects how the tool size in the tool geometry and wear offset columns is recognized for cutter compensation. This setting can be set to either radius or diameter.
TOOL OFSET MESUR A function key that is used to enter the present Z-axis location for the tool length offsets in the offset page during part setup.
wear offset An offset that allows for the slight adjustment of the cutter location. Wear offsets account for part deflection, tool wear, etc.
work offset An offset used to adjust the location of every tool loaded in the machine. On the mill, the work offset changes the position of the spindle in both the X- and Y-axes, and often the Z-axis as well.
WRITE/ENTER A key on the Haas control that acts as a general enter key.