1. On/off switch
This symbol indicates the on/off switch of the CNC machining process. This symbol activates the machine’s digital components such as its spindle and table.
2. Direction control knob
The direction control knob is used to switch between clockwise and counterclockwise motion and is used for drilling, tapping and reaming in concentric circles.
3. Start/stop buttons
The start/stop buttons are located on the machines control panel. On most machines, the start button briefly engages the motor to start the machining process, while the stop button halts the operation.
4. Feed dial
The feed dial is used to set the desired rate of feed for precise drilling, reaming and tapping.
5. Coolant supply valve
The coolant supply valve regulates the flow of coolant for lubrication and cooling of the workpiece material.
6. Spindle speed knob
The spindle speed knob allows the user to adjust the rotation speed of the spindle in order to achieve the desired results in cutting and drilling operations.
7. Depth control knob
The depth control knob is used to set the depth of the tool into the material, allowing precise positioning of the tool for different operations.
