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

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.

Overall, this stepper motor is an excellent choice for anyone looking for a powerful and reliable stepper motor. Its high torque output, precise movements, and durability make it ideal for a wide range of applications, and it is an excellent investment for anyone looking to upgrade their machinery or build their own.

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

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.

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.

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.