CNC Cutting Machine Practice Test

What is one main advantage of closed loop systems in CNC machining?

1. Greater accuracy

2. Lower cost

3. Easier setup

4. Less complexity

The correct answer is: Greater accuracy

One main advantage of closed loop systems in CNC machining is greater accuracy. Closed loop systems utilize feedback mechanisms to continuously monitor and adjust the position of the machine components. This feedback ensures that any discrepancies from the desired position are corrected in real-time, allowing for precise control over the machining process. By integrating sensors that provide information about the exact position of the moving parts, closed loop systems can minimize errors caused by drift or external forces. This results in highly accurate machining operations, which is critical in applications where precision is essential, such as aerospace and medical device manufacturing. In contrast, other options such as lower cost, easier setup, and less complexity do not typically characterize closed loop systems. While there can be variations in cost based on the technology employed, closed loop systems are generally more expensive due to the additional components required for feedback. Setting up these systems can also be more complicated, as they require careful calibration and integration of sensors. Furthermore, they tend to introduce more complexity into the machining system compared to open loop configurations, which operate without feedback.