A command that allows for circular movement in CNC programming is known as what?

The command that allows for circular movement in CNC programming is indeed represented by G2 or G3. G2 is used for clockwise circular interpolation, while G3 is used for counterclockwise circular interpolation. This means that when you want to create a circular arc in your machining path, you would use these commands to effectively specify the direction of the arc and the parameters guiding the tool along that path.

Circular interpolation is essential in CNC machining when creating parts with rounded features or contours, as it provides precise control over the tool's movement in a circular manner. This capability is a key aspect of CNC programming, allowing for a higher level of sophistication and precision in the manufacturing process.

The other commands serve different purposes: G1 is for linear interpolation, which moves the tool in a straight line; M2 is used to end the program; and G0 is for rapid positioning, moving the tool quickly without regard to the path it takes. Thus, G2 and G3 are unique in enabling circular motions, making them the correct choice in this context.