polou's i believe can take up to 35v , however i would not go above say 32v max , polous have a habit of instant death if over 35v .
depending on your power supply , the main critera is not to exceed 2a max drawn by the stepper motor , as most modern stepper drivers are current limiting this will also look after the voltage
steppers are not like normal motors they drive max current when stationary and not whilst moving .. steppers are also designed to run hot , so long as you can bear your hand on it it's fine , if it's at the point of frying eggs then no
the benefit is the steppers will run faster .. volts = speed , current = holding power or torque , the higher the voltage the lower will be the amps ( ohms law )
the main problem is polous are cheap but low current ... Leadshine are seperate and more expensive however they allow higher voltages and current
my rule of thumb nema17's are fine with polous , nema23's and above use Leadshine or similar . ( i.e black boxes with step direction inputs ) they come in many disguises and brand names , but they are just about identical
( apart from the price some times )Statistics: Posted by cncbasher — Mon Dec 01, 2014 3:25 pm
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