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Member Since: July 9, 2015

Country: United States

  • I'm using the Big Easy Driver to run the 57BYGH420 stepper motor (cdn.sparkfun.com/datasheets/Robotics/57BYGH420.PDF). Because I'm at the maximum current rating of the Big Easy Driver, I've attached two heatsinks, one on the driver chip and another on the underside of the Big Easy Driver. I also have a fairly powerful fan blowing on the Big Easy Driver to help cool it down.

    I'm powering the Big Easy Driver with a 12 Volt 3 Amp power supply. I've hooked it up as per the tutorial. I'm not using the white and yellow cables from the stepper motor, so it's being operated as a bipolar stepper motor.

    Unfortunately, the stepper motor has good control and then there's a small flame and the board is fried. There's a black burn mark on the driver chip next to the white number one printed on the board. The stepper motor requires 2A/phase, but I thought that the Big Easy Driver could handle this. Should I be using a different driver?

No public wish lists :(