Questions tagged [stepper-motor]

A kind of motor that moves in steps.

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Closed loop control of a stepper motor (i.e. servo system)

Crucial to the performance of a CNC is its ability to precisely, accurately and quickly move to the directed position. Stepper motors are perhaps the most popular (and therefore cheapest) motors ...
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Maximum speed Nema-34 stepper motor can handle

I've got used 34HS8801 NEMA34 stepper motor which I am experimenting with. Unfortunately, dtasheet doesn't provide driving voltage, nor does it provide maximum RPMs. Now, I would like to see how fast ...
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Can I power an external stepper motor driver while stepper motor is disconnected from driver?

I am building a laser cutter and I am using external stepper drivers to power stepper motors. I have a driver for an optional stepper motor for a rotary attachment. I would only disconnect or ...
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Stepper motor doesn't move, just vibrates using DRV8428

This is my first time trying to create a stepper motor driver with my own PCB so apologies if I've missed something super obvious. Anyways, I'm trying to use a DRV8428 (datasheet) to move a stepper ...
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Stepper motor refuses to turn

I have a NEMA 23 Bipolar stepper motor (specsheet) connected to a 24V 6A power supply that is connected to a driver (DM542T) and an Arduino Uno. I have it wired exactly as the specsheet entails: blue, ...
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Newbie: A 4-wire stepper motor whose colors don't correspond to those from driver. How to wire?

I have a 4-wire stepper motor (https://www.researchgate.net/figure/NEMA17-Stepper-motor-data-sheet_fig9_313427253). I know by testing that the A,A' circuit is [green, red] and the B,B' circuit is [...
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Are these H-Bridge motor driver controller ICs capable of reading position info from potentiometer?

I'm specifically referencing two examples of H-bridge motor driver controller ICs (BD6210 and WT7901). To more fully understand and troubleshoot the circuitry of a typical exercise bike or elliptical'...
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How to obtain torque constant for stepper motor?

I want to measure the torque constant of a stepper motor but seems I am doing it wrong. I have an MST342C02 stepper motor (200 step/rev and 4 phases) with SMD42C2 Driver. I have a converter that gives ...
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Trouble getting A4988 to work with NEMA 17 motor - can't get the current sufficiently low with trimmer, also moves erratically

I'm trying to setup an A4988 with a NEMA 17 motor. I've consulted numerous tutorials, and I'm pretty sure I've connected everything correctly. The motor is a Joy-IT NEMA 17-04 with a rated voltage of ...
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Help with Wemos D1 project!

I am trying to make my first arduino simple project based on the directions of this video for a gift to my fiancee [youtube]https://www.youtube.com/watch?v=duiAbLsXZSE&t=309s&ab_channel=Breaks%...
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Stepper Motor Driver Current Regulation: Lead Acid Batteries

I'm controlling two NEMA 34 6A stepper motors through HSS86 stepper motor drivers. The drivers take AC and DC, between 20 and 80v. I'm using them to control a golf cart via remote control, and I ...
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How to ameliorate over-current from stepper motors' back EMF?

I tried changing up the power supply. I tried 15 V, and one with a higher current rating (8 A). Here is the datasheet of the I have been mainly using: EPP-200 24 (volts). There are two stepper motors ...
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Driving coils of miniature stepper directly with IO pins?

I have a bunch of those minature 2 phase bipolair stepper motors from aliexpress. The motors are rated as 5V devices and I measured a coil resistance of 14.8 Ohm. I have read on several places that ...
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Is it safe to connect PC USB ground to 12V DC ground?

I want to drive a stepper motor (Nema 17), for which I have chosen 12V power supply (switching). In order to develop/play, I would like to connect a devboard (something akin Arduino) to USB. However, ...
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Power supply to an A4988 driver

I am starting to use the driver A4988, typically used for NEMA 17 motors and many others. As you may know, it has to separated VCC/GND pair of pins, one to supply the driver, the other for the motor ...
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Stepper Motor Driver CLK-IN vs Parallel-IN

I have a few questions about stepper motor drivers. I'm currently trying to build a PCB with a stepper motor driver IC to gain a better understanding of them. Here is the link to the IC I'm using: ...
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Detect stepper motor rotation - connect bridge rectifier to motor driving wires

As a follow up to my previous question. I want to develop a small circuit, which can detect, if a stepper motor is driven. After checking all options/provided as answers, I decided, that probably the ...
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Correct motor type to use to open a small "hatch"

Using an atmel microprocessor (attiny2313) to make a "simon says" game for my dog (yep, for a treat). I have all the game play programmed and starting to look at the hardware required to ...
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Understanding stepper motor as generator Vs DC motor (RMS to equivalent DC)

I am using a stepper motor as a generator in a proof of concept experiment for something. The motor came from an old printer so do not have specs for it, but I believe it's unipolar. It has 5 wires, ...
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Stepper motor has own encoder, can I connect encoder pins to microcontroller and see feedback?

I am using closed loop stepper motor with motor driver. Here is my driver CS-D808. I am using this with microcontroller. I want to stop this motor always certain location after 5 to 10 turns. I wrote ...
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Step down transformer connection with stepper motor drive

I have to connect a step down transformer to a stepper motor drive. This transformer has 3 wires that i must connect to the driver. I'm having difficulty in making the connections. Any help would be ...
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Stepper motors both rated for higher current but the NEMA 23 stops and the NEMA 17 keeps going, could it be a (hardware) low quality motor issue?

I am using the DRV8825 stepper motor driver. The NEMA 17 is rated for 1.2 A and the NEMA 23 I'm using says it's rated for 2A. I have two NEMA 23s and they both soon choke out (stop moving). When I was ...
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Any way to use brushless ESCs to drive 4 wire bipolar stepper motor?

I have some brushless ESCs, Arduino, and Raspberry Pi lying around, and I'm wondering if there's some way to use this combination to drive a 4 wire bipolar stepper motor.
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Detect stepper motor rotation without access to shaft / rotating parts

The problem is the following: For an existing application I need to develop an addon-board, and one of the functions it needs, is to detect if a stepper motor inside the machine is running. The ...
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How to get power consumption from datasheet

I am using this stepper motor on my project and am trying to pick a power supply that will be able to supply enough current to all of my components. Looking at the datasheet I'm not sure whether to ...
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Nema17 - Frequency - Temperature issue

Hi i am trying to use MCPWM to move a nema 17 motor with esp32. I am using a TB6560 stepper motor driver and it setup is limmiting current to 1.5A and i am using 1/8 Microsteps. Motors is classic one ...
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How does this stepper motor work?

I found this stepper motor, it seems like a NEMA 24, with four pins. I connected it to a driver (which formaly ran a NEMA 17), and at most it just makes a click sound and nothing else. I opened it up ...
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Get high torque out of stepper motor

I have a project where I need to lift about 2 kg about 15 cm above the ground with a stepper motor. I understand the holding torque can be calculated force times distance. So that would give me ...
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Significance of the pulse setting on stepper driver and performance

I have a stepper motor driver DM860D and I am using signals from an Arduino to control a NEMA 23 stepper motor. Can someone explain what the significance of the pulse/rev setting on the driver is, or ...
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Haptic feedback from DC motor

I want to make a simple lever connected to a DC motor pressing down on surfaces with different rigidities. I will control the lever up and down to the same position while observing the torque (or ...
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1 answer
237 views

Bipolar stepper motor spins very slowly and makes a loud noise

I got a custom PCB. I am using DRV8428P driver (here is the datasheet) for a stepper motor. The problem I am facing is not being able to have the stepper rotate ...
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Stepper motor ABCD versus A+A-B+B-

I am replacing a stepper motor and am checking that the wiring is the same as my old motor. All of the wires are colored the same: black, green, red, blue. But my old motor uses the convention black ...
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Bipolar stepper motor doesn't spin but vibrates

I got a problem with controlling a bipolar stepper motor. It doesn't spin but vibrates. Here is the schematic of my stepper driver: DVDD supplies 5v DC. Here is the wiring map from the motor's ...
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TMC2130 Stepper Motor on Raspberry Pi. SPI issue?

For the last few days I've been struggling to get a NEMA17 (1.5 rated current) stepper motor to function with TMC2120 driver (vref = 1.0) and I'm all out of options now to try, so I'm here looking for ...
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Difference between Quad Half-Bridge and Dual H-Bridge driver ICs from the control point of view

There are driver ICs consisting of either quad half-bridge (such as DRV8932) or dual H-bridge (such as DRV8428E). From the control point of view, what is the advantage of choosing quad half-bridge ...
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Problem interfacing stepper motor with Atmega 32

I have been trying to interface a bipolar stepper motor with an ATmega32 controller using AVR assembly, but it just keeps clicking without movement or just move back and forth in the same step. Here ...
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Not enough amperes in a stepper motor control system

I am student who is trying to get four 28BYJ-48 stepper motors to turn for a split flap display hobby project. Here is the schematic: simulate this circuit – Schematic created using CircuitLab ...
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Using a stepper motor with an undersized power supply

Is it possible to run a Nema 42 stepper motor 110HZ150-210 with 36V at slow speed and 15N.m load (its holding torque is 21 N.m)? If it is possible then how? The specs of the motor: Step Angle: 1.8° ...
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Torque half step/full step in stepper motor

At an exam, I was asked the following question: A stepper motor has the greatest torque on its shaft in the 'halfstep/full step'. Everywhere on the internet it says that full step gives the most ...
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Replacing a single dual shaft stepper motor with 2 stepper motors

I have a stepper motor that is 42x42x60mm (width, length, height) and has a shaft in the front and back of the motor. This thing has finally given out and won't rotate even when powered down. But I ...
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4 answers
259 views

FOC with 50pp stepper kills encoder precision by factor 50

this is my first posting here. I am an IT engineer which does some work on electronics also, partly hobby, partly for innovations at work. I have a working stepper FOC prototype with current sensing ...
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Compliance of 2x female connectors with male pin breakaway from another brand

For a product similar to a 3D printer I'm connecting 5x small Nema 8 motors and ground cables through a small 26x connector. The connector is enclosed and cannot be accessed from the user. The motors ...
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Why do stepper motors draw less current at higher speeds?

I have an A4988 and a NEMA17, when I set the current limit to 1.5 A and the motor runs at a low speed of 0.2 RPS I measure the current and effectively it draws 1.5 A. Now when I run the motor with the ...
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What voltage does a stepper motor need to be run at for optimal torque?

Take this motor for example. It is rated for 24-48V, 4.2A/phase, 0.9 ohm coils, and 3 Nm holding torque. Using a motor driver like this, what is the ideal voltage to run the motor at to achieve the ...
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How to set holding torque in 3 phase stepper motor drivers?

I have no previous experience with stepper motors. I want to use such a 3-phase driver in a 3-phase open loop stepper motor. I looked at the datasheet here, but I couldn't see any information about ...
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3 answers
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CS-D808 and NEMA34 undervoltage

I want to drive stepper motor with CS-D808 (30V-80V) but I don't have enough power, I have 24V. I couldn't move stepper motor. Is this because of power? Here is my Arduino code: ...
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2 answers
143 views

Can I power multiple stepper motors from a bench power supply without issue?

I'm trying to create a CNC machine as a practical implementation of what I've been learning in electronics. I want to be able to power multiple stepper motors (Nema 17s via rasp pi and driver), some ...
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Driving 2 Stepper Motors using a Quad Motor Driver Shield

I've tried driving two Size 8 Bipolar Nema Stepper Motors using a Quad Motor Driver Shield from DFROBOT. I get vibration and noise through the motor but can't get it to move. Is it possible to use ...
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Calculate the correct current limit for driver A4988

Im using the driver A4988 together with stepper 28byj-48. Ive read somewhere that the correct current limit on 28byj-48 is somewhere between 0.1-0.15 v. However if I feed it with 12 v there is a high ...
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5 answers
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BLDC vs Stepper motor

How is a BLDC motor fundamentally different from a stepper motor? They both operate in the same way where you manually energize coils to force the rotor to turn. Is there a reason you couldn't do ...
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