I would like your advice on something. So I’m using 2 stepper motors (nema17) along with a motor driver each (drv8825) for my project. The rated current of the stepper is 1.3A and the max operating current of the driver is 2A.
The motor driver has a pot that allows you to change the current limit. Current limit = V * 2. So if I want 1A, then I have to set the pot to 0.5V.
When I connect my power supply to one motor, it runs smoothly. However, when both motors are connected to the supply, one starts to hum and moves very slow and the other continues to move at a decent speed that I require. Please can you help me out.