Originally Posted by CNCZONERAMICO 
My controller box has the power cabling daisy chained from one driver to the other with only one set of power cables coming direct from the power supply itself to the first driver. Is this OK?. Most of the controllers I've seen have the power distribution from individual separate wires coming direct from the power source, not daisy chained.
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Usually the recommended way is always to run individual from PS to each drive.
Originally Posted by CNCZONERAMICO 3) I am loosing the optical encoders from the original machine configuration, since the new controller drivers have no provisions for connecting an optical encoder, and someone in another thread mentioned that MACH 3 does not work with optical encoder setups? I am not sure on this. Any input?
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If you are using steppers, the encoders are not usually used.
What you may be referring to is that Mach does not close the loop via encoders, the drives do this when using servo's, however.
Al.