A canned cycle is defined as what?

A canned cycle is a pre-programmed command or sequence of commands within CNC (Computer Numerical Control) programming that automates the machining process for common operations. When a programmer uses a canned cycle, they can specify a certain set of parameters for machining specific features, such as drilling or milling, without having to manually input each individual command.

For example, a drilling canned cycle will include parameters for depth, feed rate, and retract height, all packaged into a single command that makes programming more efficient and less prone to error. This enhances productivity by reducing the time needed to write lengthy code for repetitive tasks and allows operators to easily replicate processes.

Other options, such as commands to stop the machine, perform tool changes, or start new programs, do not describe the nature of what a canned cycle is intended to accomplish. These tasks may be part of the overall CNC operation but do not represent the specific function that defines a canned cycle. The purpose of canned cycles is to simplify and streamline the programming of standard machining features, making option A the correct description.