STEPPERONLINE 5PCS Nema 17 Stepper Motor 1.5A 12V 45Ncm (63.74oz.in) 4-Lead 39mm Body W/ 1m Cable and Connector for DIY CNC/ 3D Printer/Extruder

My custom printer is based on the Prusa MK3S design, so it uses Prusa's heavy direct drive extruder. I needed an X-axis motor with more torque in order to reach at least 15,000 mm/sec^2 acceleration. With smooth input shaping on Kalico (a Klipper firmware derivative), I was easily able to reach that with this motor. I printed several test prints with aggressive speeds (80-150 mm/s) and had no issues. It is quieter than my previous motor, which is nice. In terms of quality, it is comparable to the other big brands of motors. This thing has great bang for the buck.

I have a FoxAlien CNC, Masuter Pro. I swapped out to these steppers when one of the factory steppers died after 2 years of hard work. Decided to step up and double the torque. These fit and connected with no issues. So much stronger than the originals (25nm vs 48nm) I also changed out the 2mm belts to 3mm belts. HUGE improvement.

I play around with these. I dropped them onto the hard floor by mistake and they still work perfectly. Wiring was simple. No corrosion, nothing. I don't about durability but they work under my tough conditions. Would recommend.

I got this to add another extruder stepper motor to a 3d printer. It's overkill, but it matches the other 3 extruder steppers that I already had on it. It is good and strong, and appears to have good step accuracy.

These motors seem to work fine but I had to use their cable and not the cable that was original to my printer. Their wiring is straight through - their motors are +-+- (a+ black, a- green, b+ red, b- Blue). Many other motors are +--+ (a+, a-, b-, b+). As you can see in the picture there is a crossover in the ribbon cable.

I have been printing with these steppers for a month or so nonstop without any issues

Many of the positive reviews have already stated the important bits. Good strong motors at a fair price, work well and at their rated specifications. But as Mark stated in his review, the cables provided with these motors will likely not line up to your 3D printer if that is your intended purpose, and you will likely need to map the connection and re-pin the connectors. In my case, I ended up replacing the black blade-style 4-pin connector with a 2.54mm JST-XH 4-pin connector for a factory mate to the printer board. Connector kits are all over Amazon here.

The construction and quality on these is great. Nothing to complain about, especially for the price. It's a standardized high quality design that has been implemented well.