CNC Cutting Machine Practice Test 2025 – Complete Exam Preparation

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Question: 1 / 400

What does "backlash" refer to in a lead screw system?

The wear and tear on mechanical parts

The space between the nut and screw impacting resolution

Backlash in a lead screw system refers to the space or clearance between the nut and the screw that can affect the system's accuracy and resolution. When the lead screw is rotated in one direction, the nut moves away, and when the direction is reversed, there can be a delay or play before the nut engages with the screw again due to this clearance. This play can lead to imprecise movements, making it difficult to achieve the desired positioning, especially in applications requiring high precision. By recognizing and mitigating backlash, operators can ensure better accuracy and performance in CNC machining tasks.

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The excess lubrication within the mechanism

The vibration of the machine during operation

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