Power supply capacitor

I am getting the final components together to run powermax II steppers with a xylotex stepper driver. I feel forced to use a 24 volt switching power supply based on the prices I have found. I know I will need a large capacitor (2,000-10,000uF) on the supply. Can anyone tell me how big is really necessary? My motors will have to be wired series, I think, because they draw 2.3 amps/phase in series and 4.6 amps/phase in parallel and the driver is 2.5 amps/phase max.


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