Songhe 3D Printer Parts DRV8825 Stepper Motor Driver Module with Heat Sink for Ramps 1.4 StepStick A4988 (5pcs)

Arrived on time and as described.

Ive tried all 5 drivers in the pack I got, 4 burned out very quickly, at any current setting, the 5th never worked at all. The heatsink gets hot almost as soon as you connect the power supply. One out of 5 has a defective potentiometer. Another, out of the box, has only 2 Ohms resistance between positive and negative voltage input. You can still adjust the current, but the end points have broken, so you never really know where you are. Ive checked with an expert in how to wire these, we set the current super low, hardly any holding torque on the motor at all as a result. Yet, best we got was a few minutes of action before the thing was burned out. At least for me, they dont work.

I bought these for my custom Eggbot controller board as an upgrade from the A4988 stepper drivers. They worked quite well driving some NEMA 17 stepper motors. Setting VREF was as easy as the A4988 cousins, as long as you remember that the potentiometer is in the opposite corner. I recommend putting the heat sinks on before using though. They can get quite warm with prolonged usage.

New CNC, turned on the controller without my motors attached and fried a couple drivers. Oops. These came quick and work great

Worked Great

They drive by stepper Motors. They do it very well.

i checked all boards to make sure they worked and all 5 worked at the start. I accidentally fried one when i forgot to remove the motor wires while adjusting the pot, thats on me. but then one by one, after several power cycles the driver would refuse to turn my motor. when powered on the motor would twitch, but not rotate. 3 boards did this and im on my last one now. maybe i shorted something somehow when testing out each microstep mode, maybe its just a bad board. they do work but be weary they may randomly go bad on you!

These stepper motors worked perfect in my SKR 1.3 for my CNC machine. One was bad in the first order, but a replacement was quickly sent and everything is working as expected.

Exactly what I was looking for, cheap boards but the ones I received were reliable. Using them to play with some NEMA 17s

Quality Drivers. All worked as intended!