Intro to CNC Machines provides a comprehensive introduction to computer numerical control (CNC), which uses numerical data to control a machine. CNC machines rely on a system of three linear and three rotational axes in order to calculate the motion and position of machine components and workpieces. A machine control unit controls and guides the movements of the machine tool. This class also describes PTP positioning, which moves to the end position before the tool begins to cut, and continuous path systems that can move a tool along two or more axes at once and cut during the movement. Additionally, closed-loop systems provide feedback, while open-loop systems do not. CNC machines are used to make a variety of products using a number of different processes. With proper training, a human operator can use CNC machines to make accurate parts with decreased risk of error. After taking this class users should be able to describe common components of CNC machine tools and controls.
The training session will begin with a pretest to establish baseline understanding and prepare the learner for what to expect in the training material that follows. This module includes 20 lessons:
- CNC for Modern Manufacturing
- History of CNC
- CNC Machine Movement
- CNC Machine Variety
- CNC Coordinates
- Positive and Negative Directions
- Rotational Axes
- Contouring
- CNC Machines
- Machine Control Unit
- Control Systems
- PTP and Continuous Path Systems
- Open-Loop and Closed-Loop Systems
- Control System Categorization
- Servomotors
- Feedback Devices
- Closed-Loop Error Correction
- Input Methods
- Control and Operation Features
- CNC Machine Components
