Depending on your driver type, use the following formulas to calculate VREF:
The BJ42D15-26V10 is a 4-wire bipolar motor. This means it contains two isolated internal coils (Phase A and Phase B). Internal Schematic
Thanks to its balanced power-to-weight ratio, the BJ42D15-26V10 is highly versatile: bj42d15 26v10 stepper motor datasheet
Commonly used for the X, Y, and Z axes on Creality Ender 3 series and CR-10 mini printers.
For years, users assumed these motors were rated for 1.5A based on their size (42mm x 34mm), but community investigation revealed a different reality. Depending on your driver type, use the following
: Designates the product series for hybrid stepper motors optimized for office automation and 3D printing applications.
The is a "current-limited" motor. If you connect it directly to a 12V battery (without a chopper driver), Ohm's Law dictates: I = V / R = 12V / 2.6Ω = 4.6 Amps . The motor will reach 130°C in under 60 seconds and be destroyed. For years, users assumed these motors were rated for 1
Under a full 1.0A load, the surface temperature can rise by up to 80∘C80 raised to the composed with power C
For official manufacturer datasheets and more detailed specifications:
The BJ42D15 26V10 is a low-inductance, moderate-torque NEMA 17 stepper suitable for compact systems. Its 26 V / 10 Ω labeling requires careful driver selection – . Obtain the original datasheet for exact thermal limits and torque-speed curves.