Computer Numerical Control Programming Basics

By Su TP

# Introducing CNC Programming Basics

This book is written in a friendly, easy-to-understand style that beginners and nontechnical readers will enjoy.

# Who needs this book?

Students with basic math skills (add, subtract, multiply and divide). An inexpensive calculator is all you need!

Learners, young or old, eager to unlock the mysteries of CNC Programming Basics


Computer Numerical Control Programming Basics

# Contents:

1. Cartesian Coordinate System
2. Machines Using CNC 9 Programming Systems
3. Point-to-Point or Continuous Path
4. Point-to-Point Positioning
5. Continuous Path (Contouring)
6. Interpolation 15 Programming Format
7. Programming for Positioning
8. Work Settings and Offsets
9. CNC Bench-Top Milling and Turning Centers
10. CNC Programming Hints — Milling
11. Milling and Drilling Programming
12. CNC Programming Hints – Turning
13. Fanuc Compatible Programming
14. Turning Programming

• Language: English
• Publisher: Lulu.com
• Release date: May 23, 2018
• ISBN: 9781387832019

Book preview

Computer Numerical Control Programming Basics

Table of contents:

1. Cartesian Coordinate System

2. Machines Using CNC 9 Programming Systems

3. Point-to-Point or Continuous Path

4. Point-to-Point Positioning

5. Continuous Path (Contouring)

6. Interpolation 15 Programming Format

7. Programming for Positioning

8. Work Settings and Offsets

9. CNC Bench-Top Milling and Turning Centers

10. CNC Programming Hints — Milling

11. Milling and Drilling Programming

12. CNC Programming Hints – Turning

13. Fanuc Compatible Programming

14. Turning Programming

1.         Cartesian Coordinate System

Almost everything that can be produced on a conventional ma- chine tool can be produced on a computer numerical control machine tool, with its many advantages. The machine tool move- ments used in producing a product are of two basic types: point- to-point (straight-line movements) and continuous path (contouring movements).

The Cartesian, or rectangular, coordinate system was devised by the French mathematician and philosopher Rene’ Descartes. With this system, any specific point can be described in mathematical

terms from any other point along three perpendicular axes. This concept fits machine tools perfectly since their construction is generally based on three axes of motion (X, Y, Z) plus an axis of rotation. On a plain vertical milling machine, the X axis is the horizontal movement (right or left) of the table, the Y axis is the table cross movement (toward or away from the column), and the Z axis is the vertical movement of the knee or the spindle. CNC systems rely heavily on the use of rectangular coordinates be- cause the programmer can locate every point on a job precisely.

When points are located on a workpiece, two straight intersecting lines, one vertical and one horizontal, are used. These lines must be at right angles to each