The stepper motor calculator is designed to determine the fundamental motion control parameters for a stepper motor, enabling precise control of rotational movement in automated systems such as 3D printers, industrial machines, etc. It is used to calculate the maximum speed of a stepper motor, as well as the minimum time per step and the maximum power dissipation.
The maximum speed of a stepper motor can be calculated using the formula:
where V represents the applied voltage, L is the stepper motor inductance, Imax is the maximum current, and Sr denotes steps per revolution. The stepper motor max speed calculator also incorporates the minimum time per step calculation:
Additionally, the maximum power dissipation is calculated using the relation:
Pmax = Imax × V
Example of Stepper Motor Max Speed Calculator
Calculate maximum speed for a NEMA 17 stepper with V = 24V, L = 4.8mH, Imax = 1.5A, 200 steps/rev.
Max Speed = V / (2 × L × Imax × Sr)
Max Speed = 24 / (2 × 0.0048 × 1.5 × 200)
Max Speed = 24 / 2.88
Max Speed = 8.33 rev/sec = 500 RPM
Minimum time per step = (2 × L × Imax) / V
Min time = (2 × 0.0048 × 1.5) / 24
Min time = 0.6 ms
Max Power = Imax × V = 1.5 × 24 = 36W
This resourceful A4988 stepper motor driver and Arduino interface tutorial provides everything you need to understand how the A4988 controls stepper motors efficiently.
Frequently Asked Questions on Stepper Motor Calculator
⇥ What limits stepper motor speed?
Motor inductance creates a time constant that limits the rate at which current can build up in the windings. Higher voltage helps overcome inductance more quickly, allowing for higher speeds.
⇥ Why does my motor lose torque at high speed?
At high speeds, there isn't enough time for the current to reach its maximum value before the next step. This results in reduced torque. The motor runs on partial current.
⇥ What's the difference between holding torque and running torque?
Holding torque is the maximum torque when stationary with rated current. Running torque decreases with speed due to inductance limiting current rise time.
⇥ What is microstepping?
Microstepping divides each full step into smaller increments:
- 1/16 microstepping = 3200 steps/rev for a 200-step motor
- It increases resolution but decreases torque
Related Calculators for Precise Motor Control
Enhance your stepper motor projects by accurately calculating key parameters like torque, power efficiency, and energy consumption.
You can use the torque calculator to calculate the torque in a rotating object by providing force and distance values.
This Energy Consumption Calculator or Electricity Consumption Calculator allows you to calculate the energy/electricity consumed by your home appliances, or industrial loads.
Enter any two known circuit parameters in the below Ohm's law calculator and calculate the remaining two values according to Ohm's Law.
