March 22, 2022
In this lesson, you will learn about the power-on process. The power-on process turns on the
electrical power to the CNC machining center.
March 22, 2022
In this lesson, you will learn about moving the axes manually by rotating the Jog Handle. This is
sometimes called jogging, or hand jogging, the axes.
March 22, 2022
In this lesson, you will learn about homing the axes. Homing the axes sends the axes to the
machine-home position. Homing the axes is also called zero returning the axes.
March 22, 2022
In this lesson, you will learn about selecting a part program from memory. Multiple part
programs can be stored in the CNC controller, but only one part program can be active at a
time. Selecting a part program loads it into the memory of the CNC controller and makes it
active so that it can be used to machine parts.
March 22, 2022
In this lesson, you will learn how to start the part program in a safe manner.
March 22, 2022
In this lesson, you will learn how to interrupt automatic operation of the machining center.
Interrupting automatic operation is the process of stopping the motion of the axes, the rotation of
the spindle, and the flow of the coolant.
March 22, 2022
In this lesson, you will learn to adjust the tool wear offset in the CNC controller. Adjusting the
tool wear offset is necessary because, as cutting tools wear, the dimensions they are machining
may increase or decrease. The tool wear offset process allows you to change the position of the
cutting tool to compensate for the tool wear.
March 22, 2022
In this lesson, you will learn about the power-off process. The power-off process prepares the
CNC machining center to be shut down and then turns the power off.
March 22, 2022
A CNC machining center requires a program to maximize the machine’s capabilities. Creating a
CNC program is only performed after a careful planning stage to determine exactly what
machining operations and which part dimensions the CNC machining center will need to
machine.
By the end of this course, you will be able to
• Define a CNC program
• Define the steps in CNC programming
• Understand the importance of thoroughly planning the creation of a CNC program
• Define program zero
• Distinguish between machine zero and program zero
• Explain the relationship between work offsets, machine zero, and program zero
• List methods of creating a CNC program