I got an Arduino Uno Rev3 and Adafruits Motor Shield V2. I also got two RepRap stepper motors:
Frame size 42 x 42mm - NEMA 17 1.8 degree step angle Length 47mm Holding torque 44 N.cm (4.4kg.cm, 62oz.in) Voltage 2.8V Current/Phase 1.68A Resistance/Phase 1.65ohm Inductance/Phase 2.8mH Inertia 68g.cm Bipolar, 4-wire
I thought I was going to be able to run the steppers with the motor shield, but when I tried run one of the steppers it jumps (runs little bit, then stops, then runs etc) until it reach x steps. I'm driving the the motor shield with 12v 3A power supply.
I read somewhere that the Adafruit steppers should be at-least 5V. Is that correct? Do I need to buy new steppers or any suggestions of stepper driver (shield)?
How many amps do I need to run both steppers at the same time? 1.68 x 2 = 3.36A?
I'm building two of these: https://www.youtube.com/watch?v=C15yPENQ074
Any suggestions/help is appreciated! :)