"Warning: For NEMA17 closed loop motor, need to change the value of motor peak current from 80 to 30, if not, it will burning the motor as too high current output."
What does the motor formfactor has to do with the motor current rating?
read the datasheets.
Microstepping divides steps and momentum. e.g. fullstep ~ 10Nm --> halfstep 5Nm --> 1/4 step 2.5Nm ... so each fullstep position you get 10Nm, inbetween that you get for 1/2 step positions 5Nm, inbetween that you get for 1/4 step position 2.5Nm ... better get a geared stepper with a 1:36 ratio - or any ratio that translates 200steps/rev to 360steps/rev
Generally speaking, the smaller motors have a lower maximum current rating.
Hi all,I have a project in which a 450 mm long arm will rotate in steps of 0.5 degrees from 0 to 90 degrees. Each step will take 3 seconds and the motor has to stand still for 2 seconds before going to the next 0.5 degrees. The arm will be actuated by a stepper motor with a shaft thats attached to the arm. The shaft is supported by two bearings, so the load of the arm won't have to be carried fully by the stepper motor shaft.
Size is not related to current rating -
I stand by my generalisation ...
I agree with @MarkT. I have a few of these Nema 17 stepper motors. They only draw 0.33 amps....R
But surely that's supporting my thesis (small stepper, small current)? Mark is stating that size and current are unrelated.
The Nema 17 motors you have referred to draw 3 times the current of the ones I have and you can get Nema 17 motors that draw 2 amps or more.