Kingroon Nema17 Stepper Motor Bipolar 42 Motor 4-Lead Wire with 1m Cable 23mm 42BYGH 1.5A Motor for CNC XYZ 3D Printer

I bought this motor for my Voxelab Aquila extruder, and when I plugged it in, the motor did not work. I spent about two weeks trying to figure out if there was something wrong with the motherboard, and one day the realization that maybe I had to use the included cable dawned on me. I got to work swapping out the cables, and sure enough, the motor was moving. However when I started printing something I quickly realized that the motor was stepping backwards, so I had to reverse the cables on the connector. That in itself was a journey. (I accidentally ripped apart one of the cables, then proceeded to completely melt half of the connector trying to solder the cable back together.) But in the end I finally had a fully functional 3D printer. I have no complaints about the actual functionality of the motor. It's a good value for the money if you're willing to spend some time and tinker with it.

TLDR: Works but you have to swap pins on the connector manually. In addition quite a weak motor but works for most purposes.Bought this motor for $7.99 for adding a direct drive system to my ender 3 v2. Wiring was a nightmare. By default Creality swaps pins 3 and 4 in their stock cable for proper use. However, the motor manufacturer has the pins (3 and 4) swapped on the motor which results in a double swap so no swap occurs. This meant the motor won't run.To fix this issue you must use the included cable rather than the Creality stock one. To do this you have to open the printer's motherboard cover and swap cables which is rather difficult.If this was all the motor would have received a four-star review. However, that's not all by default the motor runs backward. There is not a good software solution for this and requires you manually take each pin out of the cable and swap it with the one opposite to it as you can see in the second image.In the end, the motor does work, though it skips steps easily and runs slightly hot. To be fair the stock Creality motor does run fairly hot, and they are still well under max operating temperature.In the end, the motor is still decent value for the low price but requires a lot of tinkering.

I personally run several of these motors across multiple machines all with direct drive extruders through BMG style gearsets. In this configuration they have given me absolutely zero issues. If you are not running a geared extruder, these simply won’t get the job done if you’re pushing your hotend to its flow rate limit as this motor doesn’t have the power to do so. I do wish it didn’t ship with a multicolored stepper cable as it does look very cheap but for $8, you can’t go wrong.

replacement for a laser motor worked well

I'm running this motor with a bmg in a direct drive setup, and it has no issues running at 500mA, where it stays pretty cool.Only hiccup was the installation; the motor I received has the center pins (3 and 4) reversed as compared to what's shown on the diagram on this page. Like phases are on the same side so as to allow a straight cable to connect to an ender 3 style mainboard (pinout is 2A__1A_1B__2B). This is non standard and especially dangerous considering the diagram shows the opposite. Do not damage your drivers my friends, don't trust the diagram. Check the pins with a multimeter before you plug ANYTHING in.

Works as intended by wiring is not standard, pins 3 and 4 are indeed swapped. I attached a photo to explain the wiring.

returnedDOA

The size is just right for my X axis, small but enough power, doesn't miss a step.