Mill Series
Training Manual
Haas CNC
Mill Programming
, Haas CNC Mill Programming Training Manual
Table of Contents
INTRODUCTION ........................................................................................................................................................... 4
MACHINE HOME WITH WORK OFFSETS ...................................................................................................................... 6
WORK COORDINATE SELECTION ........................................................................................................................................ 7
TOOL LENGTH COMPENSATION G43 ........................................................................................................................... 8
ABSOLUTE AND INCREMENTAL POSITIONING ............................................................................................................. 9
THE CARTESIAN COORDINATE SYSTEM .............................................................................................................................. 10
WORD ADDRESS PROGRAMMING .................................................................................................................................... 11
PROGRAMMING ......................................................................................................................................................... 12
ALPHABET WORD ADDRESS ASSIGNMENTS .............................................................................................................. 13
PREPARATORY FUNCTIONS (G CODES) ...................................................................................................................... 18
MACHINE FUNCTIONS (M CODES) ............................................................................................................................. 21
PROGRAM STRUCTURE AND FORMAT ...................................................................................................................... 25
PROGRAM FORMAT ..................................................................................................................................................... 26
MACHINE DEFAULTS .................................................................................................................................................... 27
PROGRAMMING WITH CODES ......................................................................................................................................... 28
PROGRAM STRUCTURE ................................................................................................................................................. 29
LINEAR AND CIRCULAR TOOL PATHS ......................................................................................................................... 31
LINEAR/CIRCULAR MOVEMENT – CREATING TOOL PATH ....................................................................................................... 32
INTERPOLATION COMMANDS ......................................................................................................................................... 33
CIRCULAR INTERPOLATION (G02 AND G03) COMMANDS ...................................................................................................... 34
CUTTER COMPENSATION (G41, G42)......................................................................................................................... 39
FORMULAS – TAPPING, SPEEDS AND FEEDS.............................................................................................................. 47
DRILLING, TAPPING, BORING CANNED CYCLES ......................................................................................................... 48
CANNED CYCLES ........................................................................................................................................................ 49
LOOPING COMMAND CYCLES ................................................................................................................................... 69
BOLT HOLE PATTERNS ............................................................................................................................................... 71
,ADDITIONAL G CODES ............................................................................................................................................... 74
MILLING CIRCLES WITH CUTTER COMP. .................................................................................................................... 76
THREAD MILLING ...................................................................................................................................................... 77
CIRCULAR POCKET MILLING USING G12 AND G13 .................................................................................................... 78
CIRCULAR PLANE SELECTION ..................................................................................................................................... 83
INCH / METRIC SELECTION (G20, G21) ............................................................................................................................ 84
SETTING WORK, TOOL OFFSETS THROUGH THE PROGRAM (G10) ............................................................................ 85
GENERAL PURPOSE POCKET MILLING (G150) ............................................................................................................ 86
ENGRAVING (G47) ..................................................................................................................................................... 93
SUBROUTINES (SUBPROGRAMS) ............................................................................................................................... 96
SUBROUTINES ............................................................................................................................................................ 97
EXERCISES.................................................................................................................................................................. 99
FINAL EXERCISES .................................................................................................................................................. 103
Productivity Inc - Haas CNC Mill Programming Manual Page 2
, Introduction
Welcome to Productivity, Inc., your local Haas Factory Outlet (H.F.O.) for the Mill Programming Class. This
class is intended to give a basic understanding of the programming of a Haas Machining Center.
After 1945 design of wings for the US Air Force were becoming extremely complex and hard to
manufacture using conventional machine tools. MIT developed a machine that was able to control a
cutting tool path with a series of straight lines defined by axial coordinates at prescribed feed rates. The
first NC machine tool was introduced to the defense and aerospace industry by MIT in 1952. The contour
of a constantly changing curvature could be described by a series of short lines determined by a series of
coordinate in three axes.
The first machine tools were run with instructions or programs punched out on paper tape. The files of
the early machine tools were often in the format which later became known as G-code. The reason for
the name being that many of the lines of text began with the letter G.
In an NC machine, the tool is controlled by a code system that enables it to be operated with minimal
supervision and with a great deal of repeatability. "CNC" (Computerized Numerical Control) is the same
type of operating system, with the exception that a computer monitors the machine tool.
The same principles used in operating a manual machine are used in programming a NC or CNC Machine.
The main difference is that instead of cranking handles to a position on a slide to a certain point, the
dimension is stored in the memory of the machine control once. The control will then move the machine
to these positions each time the program is run.
The operation of the VF-Series Vertical Machining Center requires that a part program be designed,
written, and entered into the memory of the control. There are several options for getting these programs
to the control. RS-232 (serial port with a computer), 3.5” Floppy Disk, Ethernet / Networking/ and USB are
all viable ways to transmit and receive programs.
In order to operate and program a CNC controlled machine, a basic understanding of machining practices
and a working knowledge of math are necessary. It is also important to become familiar with the control
console and the placement of the keys, switches, displays, etc., that are pertinent to the operation of the
machine.
This manual is intended to give a basic understanding of CNC programming and its applications. It is not
intended as an in-depth study of all ranges of machine use, but as an overview of common and potential
situations facing CNC programmers. Also use of the new Haas Control feature “Intuitive Programming
System” or (IPS) will be demonstrated. It will produce G-Code programs for simple machine operations.
Updated CK 11/14/11; Rev 02/19/13
Productivity Inc - Haas CNC Mill Programming Manual Page 3
Training Manual
Haas CNC
Mill Programming
, Haas CNC Mill Programming Training Manual
Table of Contents
INTRODUCTION ........................................................................................................................................................... 4
MACHINE HOME WITH WORK OFFSETS ...................................................................................................................... 6
WORK COORDINATE SELECTION ........................................................................................................................................ 7
TOOL LENGTH COMPENSATION G43 ........................................................................................................................... 8
ABSOLUTE AND INCREMENTAL POSITIONING ............................................................................................................. 9
THE CARTESIAN COORDINATE SYSTEM .............................................................................................................................. 10
WORD ADDRESS PROGRAMMING .................................................................................................................................... 11
PROGRAMMING ......................................................................................................................................................... 12
ALPHABET WORD ADDRESS ASSIGNMENTS .............................................................................................................. 13
PREPARATORY FUNCTIONS (G CODES) ...................................................................................................................... 18
MACHINE FUNCTIONS (M CODES) ............................................................................................................................. 21
PROGRAM STRUCTURE AND FORMAT ...................................................................................................................... 25
PROGRAM FORMAT ..................................................................................................................................................... 26
MACHINE DEFAULTS .................................................................................................................................................... 27
PROGRAMMING WITH CODES ......................................................................................................................................... 28
PROGRAM STRUCTURE ................................................................................................................................................. 29
LINEAR AND CIRCULAR TOOL PATHS ......................................................................................................................... 31
LINEAR/CIRCULAR MOVEMENT – CREATING TOOL PATH ....................................................................................................... 32
INTERPOLATION COMMANDS ......................................................................................................................................... 33
CIRCULAR INTERPOLATION (G02 AND G03) COMMANDS ...................................................................................................... 34
CUTTER COMPENSATION (G41, G42)......................................................................................................................... 39
FORMULAS – TAPPING, SPEEDS AND FEEDS.............................................................................................................. 47
DRILLING, TAPPING, BORING CANNED CYCLES ......................................................................................................... 48
CANNED CYCLES ........................................................................................................................................................ 49
LOOPING COMMAND CYCLES ................................................................................................................................... 69
BOLT HOLE PATTERNS ............................................................................................................................................... 71
,ADDITIONAL G CODES ............................................................................................................................................... 74
MILLING CIRCLES WITH CUTTER COMP. .................................................................................................................... 76
THREAD MILLING ...................................................................................................................................................... 77
CIRCULAR POCKET MILLING USING G12 AND G13 .................................................................................................... 78
CIRCULAR PLANE SELECTION ..................................................................................................................................... 83
INCH / METRIC SELECTION (G20, G21) ............................................................................................................................ 84
SETTING WORK, TOOL OFFSETS THROUGH THE PROGRAM (G10) ............................................................................ 85
GENERAL PURPOSE POCKET MILLING (G150) ............................................................................................................ 86
ENGRAVING (G47) ..................................................................................................................................................... 93
SUBROUTINES (SUBPROGRAMS) ............................................................................................................................... 96
SUBROUTINES ............................................................................................................................................................ 97
EXERCISES.................................................................................................................................................................. 99
FINAL EXERCISES .................................................................................................................................................. 103
Productivity Inc - Haas CNC Mill Programming Manual Page 2
, Introduction
Welcome to Productivity, Inc., your local Haas Factory Outlet (H.F.O.) for the Mill Programming Class. This
class is intended to give a basic understanding of the programming of a Haas Machining Center.
After 1945 design of wings for the US Air Force were becoming extremely complex and hard to
manufacture using conventional machine tools. MIT developed a machine that was able to control a
cutting tool path with a series of straight lines defined by axial coordinates at prescribed feed rates. The
first NC machine tool was introduced to the defense and aerospace industry by MIT in 1952. The contour
of a constantly changing curvature could be described by a series of short lines determined by a series of
coordinate in three axes.
The first machine tools were run with instructions or programs punched out on paper tape. The files of
the early machine tools were often in the format which later became known as G-code. The reason for
the name being that many of the lines of text began with the letter G.
In an NC machine, the tool is controlled by a code system that enables it to be operated with minimal
supervision and with a great deal of repeatability. "CNC" (Computerized Numerical Control) is the same
type of operating system, with the exception that a computer monitors the machine tool.
The same principles used in operating a manual machine are used in programming a NC or CNC Machine.
The main difference is that instead of cranking handles to a position on a slide to a certain point, the
dimension is stored in the memory of the machine control once. The control will then move the machine
to these positions each time the program is run.
The operation of the VF-Series Vertical Machining Center requires that a part program be designed,
written, and entered into the memory of the control. There are several options for getting these programs
to the control. RS-232 (serial port with a computer), 3.5” Floppy Disk, Ethernet / Networking/ and USB are
all viable ways to transmit and receive programs.
In order to operate and program a CNC controlled machine, a basic understanding of machining practices
and a working knowledge of math are necessary. It is also important to become familiar with the control
console and the placement of the keys, switches, displays, etc., that are pertinent to the operation of the
machine.
This manual is intended to give a basic understanding of CNC programming and its applications. It is not
intended as an in-depth study of all ranges of machine use, but as an overview of common and potential
situations facing CNC programmers. Also use of the new Haas Control feature “Intuitive Programming
System” or (IPS) will be demonstrated. It will produce G-Code programs for simple machine operations.
Updated CK 11/14/11; Rev 02/19/13
Productivity Inc - Haas CNC Mill Programming Manual Page 3
