Using the formula for TMC2208/TMC2209 drivers in UART mode:
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Clip the negative black probe of your multimeter to the main power supply ground terminals or SD card slot metal housing.
NEMA 17 is the most common type of stepper motor used in 3D printers, due to its compact size and high torque output. NEMA 23 and ... bj42d15 26v10 stepper motor datasheet verified
Based on manufacturer data and verified community testing, the technical parameters for the (and its closely related variants like the -26V09) are as follows: Step Angle: 1.8° (200 steps per revolution).
Many online listings mislabel this motor as a 12V or 24V generic unit. Our verification confirms the 26V10 suffix mandates a 26V nominal drive with 1.0A phase current. Running it at 12V will result in 60% torque loss.
The following parameters represent the standard operating ratings for the BJ42D15-26V10 series: 1.8° (200 steps per revolution) Rated Voltage: 2.6V DC Rated Current: 1.0A per phase Phase Resistance: 2.6 Ω ± 10% Phase Inductance: 5.0 mH ± 20% Holding Torque: 0.35 N·m (approx. 49 oz-in) Detent Torque: 15 mN·m Max Rotor Inertia: 54 g·cm² Weight: 0.28 kg (approx. 0.62 lbs) Insulation Class: B (130°C) Mechanical Dimensions Using the formula for TMC2208/TMC2209 drivers in UART
While a manufacturer's PDF may not exist for the BJ42D15-26V10 , its specifications are not a mystery. By combining official series data with a vast amount of real-world user data and verification, we have established its true identity: a 1.5A, 6.0Ω, 34mm hybrid stepper motor.
The most common failure point with this motor is incorrect stepper driver voltage reference (Vref). If you upgrade to a silent board (like SKR Mini E3 V3.0) or replace a blown driver, you must set the current. Since this motor is , the formula is specific.
0.84A per phase. Note: It is commonly mistaken for 1.5A, but running it at this current can lead to overheating. Step Angle: 1.8° (200 steps per revolution). Holding Torque: 2.86 kg·cm (approximately 0.28 N·m). Dimensions: 42mm x 42mm x 34mm (NEMA 17 standard). Shaft Diameter: 5mm. Input Voltage: Maximum 24V DC. Wiring and Integration I will follow the search plan
: 42 mm x 42 mm x 34 mm (Standard "42-34" naming scheme) Step Angle : 1.8° per step (200 full steps per revolution) Phase Configuration : 2-Phase bipolar arrangement Verified Rated Current : 0.84 Amps per phase Holding Torque : 0.4 N·m / 2.86 kg·cm
BJ42D15-26V10 is a NEMA 17 stepper motor produced by Shenzhen Keli Motor
Note: Always verify the pairing using a multimeter's continuity test, as wire colors may vary by supplier. Optimal Applications and Performance
As the BJ42D15-26V10 is rated for and has a 6.0Ω coil resistance, the driver current must be set accordingly:
than what they are when they get to this cable. so manufacturers will usually wire this end up to the standard four pin connection...