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Engineering
General Engineering
How Can Closed Loop Drive Systems Achieve Precise 1000 mm Movements?
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[QUOTE="Ranger Mike, post: 4094694, member: 156839"] Hello, I have a few questions regarding machine tool drive and feed back system. Say I have a 1 meter long guide way and a carriage that is driven by DC motor. This carriage glides on air bearings. The drive mechanism has pinch rollers that pinch a drive rod and these rollers are driven by the dc motor. I have linear positioning scales attached for precise linear positioning. I have a mechanical switch that will trigger once it makes contact with a fixed mechanical stop at the end of the meter travel. This signal goes to a dedicated PC where software provides feed back to the drive motor. How is the processed linear position going to vary versus the true linear position? Is there has to be a certain signal lag time due to linear position signal being processed ? Will heat effect the true signal accuracy of the scales? Will motor drive noise add to error of the system? If a software program is written to slow the motor prior to contacting the mechanical stop, would this increase signal lag time? How can I get the most accurate and precise 1000 mm distance movement with this system? I appreciate any reply as I am not well versed in this discipline. Thank you [/QUOTE]
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Engineering
General Engineering
How Can Closed Loop Drive Systems Achieve Precise 1000 mm Movements?
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