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#349
 
08-21-2010, 08:13 PM
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| 1 axis of movement!  YouTube- Kearney and Trecker first closed loop movement.that is a .05" movement and .0001" per division - yes tenths indicator.  very happy sam  |
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#350
08-23-2010, 10:13 PM
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| very nice Matt |
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#351
09-07-2010, 10:48 AM
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#352
01-29-2012, 11:43 AM
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Hello everyone, Nice thread and good development, i'm building a cnc with nema34 steppers but thinking of making a small less than 200watt servo drives (pure-analog). Here is my idea how about using a LM12 or OPA549 power op-amp for servo amplifier  with an additional frequency to voltage converter (for encoder), have about 4 to 5 op-amp finish the job and fine tune the gain etc. will this be sufficient to close the loop?. Then can one simply use pc-parallel port to put out PWM signals for control  |
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help! 
Linear Mode
