When the motors are being driven they're turning on and off very quickly, and are acting somewhat as a step down power supply. So even when the drivers are set to 2A, and the motors can say take 3A, you'll actually only be pulling about 0.6 - 0.8A / stepper.
seems huge . but it doesnt say anything about accuracy (in degre or number of step per turn)12v, 15A, and 5v 30A,
aldenhart wrote:The best wire gauges for power are 20 ga or 18 ga. Anything larger than this (16 ga or smaller number - the numbers get smaller as the current handling capacity gets larger, until you start using 0 and 00 and 000) is also OK, but the larger gauges get hard to connect to the terminals as the wire size gets bigger. 20 ga is capable of about 4 amps, plus or minus, 18 ga. is 7 amps plus or minus, and 16 ga is 10 amps +/-. 22 ga is also possible, but I'd say it's marginal.
The same wire used for the power connection can also be used for the motor connection. I usually look on Ebay for 4 conductor shield "AV" wire in 20 or 18 ga.
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