Twotrees Nema17 Stepper Motor, 4 Lead Stepper Motor Nema 17 Motor with 1m Cable 42BYGH 38MM 1.5A (17HS4401S) for CNC XYZ 3D Printer

This bolted right up to my Ender 3 Prro. The plug is the same, and it matched the polarity that the stock stepper used. You may need to reverse the rotation in software, so heads up there. Otherwise, it's pulling filament from a curved Bowden tube that leads to the dryer box that I keep active filament in with no problem - torque is not an issue as I've used it. I believe it matches the stock stepper's step rate, as well. For eight bucks, I lightened up my print head plenty with no evident sacrifice. Cheap, perfect fit, plug and play, super easy install.

Used 2 of the 3 of these on my ERC Tim Sav Pin Cutter and it's been operating well without issue for over 6 months. The steppers seem to be very accurate and I'm pleased with the smoothness of operation and the noise level produced.

Great for general purpose applications. Worked right out of the box.

1.5 A is too much for most hobbyist projects, but that is no fault of the part. Once I had a driving circuit designed that could drive 1.5 A the motors worked great and were also very accurate. From a hobby standpoint you should look for a motor that requires less than 500 mA.

Works well so far.

I was having trouble getting a replacement motor for the y axis on my Fox Alien laser engraver. Since they don't publish part numbers or motor data I had to go old school and found the info I needed and this motor was a perfect replacement. Only thing is you might have to reverse the motor leads depending on which side you use it on.I'm very pleased with my purchase.

I recently installed the Titan Extruder upgrade on my CR-10 V2. Although it's a great direct drive upgrade, the amount of weight it puts on the hot end assembly is significant. This, potentially, can impact the acceleration and movement of the hot end, and therefore, 3D prints with a lot of angles. With this stepper, not only did it cut the weight by 2/3rds, it worked perfectly without me re-calibrating the e-steps! Now don't get me wrong, I plan to perform e-steps tuning, via Pronterface, to dial it in after I install the E3D V6 all metal hot end (with 3D Passion nozzle and heatbreak). Pay no attention to the cable management in the pictures since that is temporary. I'm designing a drag chain setup in Fusion360 to handle all that. Thanks!Updated: I added a heat sink (removed the included tissue tape and installed actual thermal adhesive tape) to the stepper motor since it runs a little warm.

I'm revising this review; thought it had burned out but turned out that it was a bad extension cable that had nothing to do with this stepper motor. I'm using it as the extruder motor for my Micro Swiss Direct Drive extruder with my Creality CR-10S Pro. It's been working great for months, reliably and accurately (after e-steps tuning and linear-advance tuning, of course).