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Closed-Loop Stepper vs Open-Loop Stepper vs Servo Motor

Compare open-loop steppers, closed-loop steppers and servo motors by accuracy, lost-step recovery, heat, speed, inertia, tuning and application cost.

CNC Motor Selection Guide: NEMA 23, NEMA 34, Closed-Loop Stepper or Servo?

Learn how to select CNC motors for desktop routers, 1325 wood CNC machines, plasma and laser cutters, mills, lathes and large gantries. Compare NEMA 23, NEMA 34, closed-loop steppers and AC servos usi...

How to Choose a BLDC Motor: Torque, RPM, Voltage and Power

Learn how to choose a BLDC motor using torque, RPM, 24V vs 48V, power calculations, duty cycle, sensors, and driver sizing. Includes a real 24V example.

How to Choose a Reliable Shaft Coupling?

reasonable shaft coupling for motor power transmission

How to Choose a Stepper Motor Driver: Voltage, Current and Microstepping

Learn how to choose a stepper motor driver by voltage, phase current, inductance, microstepping, power supply, wiring and protection for CNC and automation.

How to Choose a Stepper Motor for a 3D Printer

Learn how to choose a stepper motor for a 3D printer by torque, inductance, step angle, motor length, 24V/48V supply and TMC2209/TMC5160 driver compatibility.

How to Select a Drive Motor for AGV and AMR Applications

Learn how to select an AGV or AMR drive motor using vehicle mass, wheel diameter, speed, acceleration, grade, rolling resistance, gearbox ratio, encoder, brake, 48V battery and communication requireme...

How to Size a DC Servo Motor: 24V vs 48V, Torque and Power

Learn how to size a 24V or 48V DC servo motor using torque, power, RPM, load inertia, RMS duty, encoder and brake calculations. Compare real 100W–1000W models.

How to Size a Stepper Motor: Torque, Speed, Inertia and Safety Factor?

Learn how to size a stepper motor using torque, speed, inertia, safety factor, drive voltage and thermal checks, with formulas and worked examples.

Lead Screw Stepper Motor Selection Guide: Lead, Thrust, Speed and Accuracy

Learn how to select a lead screw stepper motor by lead, thrust, speed, stroke, critical speed, buckling, backlash and positioning accuracy, with NEMA 17 examples.