How do you adjust a stepper driver?

How do you adjust a stepper driver?

Adjusting the current of a stepper driver is easy, just turn the small potentiometer with a tiny flat head screw driver. Be very careful though. Do not short your screw driver to any of the terminals of the stepper driver as you may cause damage to your stepper driver.

How is stepper driver current calculated?

Calculating Driver Current Settings

1. Look up the specifications for the stepper motor and locate the peak current limits of the motor.
2. Multiply the peak current by 0.707 to determine the maximum current in RMS. This is the maximum run current.
3. Multiply the maximum run current by 0.6 to determine the hold current.

How many amps does a stepper motor use?

Stepper motors have a rated voltage and current. A typical stepper motor like our NEMA 17 might have a rated voltage of 2.8 Volts and a maximum current of 1.68 Amps. This basically means if you hook it up to 2.8 Volts it will draw 1.68 Amps.

How do you determine the maximum current of a stepper motor?

Measure the coil DC resistance, and budget about 1W max for the coil as an initial guess. This will tell you, roughly, the current and voltage the motor is designed for. If possible, design your drive so that it can use a lower ‘hold’ current when the motor isn’t in motion. This will help keep the motor cooler.

How do I connect the Big Easy driver to the motor?

The connections between the Big Easy Driver and motor are as follows. Note: Do not connect or disconnect the motor while the Big Easy Driver is powered. Once your motor is connected, you can then connect a power supply to the Big Easy Driver.

How many steps/Rev does the Big Easy driver get?

It defaults to 16 step microstepping mode. (So if your motor is 200 full steps per revolution, you would get 3200 steps/rev using the Big Easy Driver.) It is a chopper microstepping driver based on the Allegro A4988 driver chip. For the complete specs of the design, read the A4988 datasheet.

Where can I find additional permissions for Big Easy driver?

Permissions beyond the scope of this license may be available at www.schmalzhaus.com/BigEasyDriver.

How many steps can the bigeasydriver (bed) drive?

Each BigEasyDriver (BED) can drive up to about 2A per phase of a bi-polar stepper motor. It defaults to 16 step microstepping mode. (So if your motor is 200 full steps per revolution, you would get 3200 steps/rev using the Big Easy Driver.)