Questions tagged [stepper-motor]

A kind of motor that moves in steps.

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15 views

What are the most reliable pins for stepper driver (Enable Step Dir) for ESP32?

Uploading code to ESP32 cause noise on motor pins with undesired motor movement until upload started, Probably due Z state of pins. Some capacitor on ESP32 EN pin or pressing button on the ESP32 board ...
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105 views

Why is my pullup resistor more noise immune than a pull down?

I have a circuit that appears to have some noise problems related to stepper motors I'm driving. When I changed some switches to use pull up instead of pull down resistors, I get better results. Why? ...
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249 views

Why sometimes a stepper winding is not fully powered?

After some tests with my multi-meter I was quite surprised that the windings of my stepper was not receiving the full current (1.5 A) even if the driver board was set so. After mumbling and scraping ...
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43 views

How to wire MCU control signals with power and ground to control multiple external motors?

I'm working on a system based on a NodeMCU/ESP8266 WiFi controller, which controls two separate motor units, each consisting of a 12V motor and solenoid actuator. For practical reasons, I need to ...
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70 views

Stepper motor shaft vibrating and vibrates the load

I am new to the electronics hobby so any hep is appreciated. For my application I need a quiet motor that can provide high torque at low speed. I purchased a NEMA 17 stepper motor (model is 17HS4401s) ...
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RC Auto motor issue [closed]

The main engine in this rc auto seems to work discontinuously as you can see from the image. It goes backwards and forward but just with little steps even if the signal from the transmitter is ok (I ...
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47 views

Translating Stepper motor driver outputs (A-,A+,B-,B+) back into clk,en,step

I have a rather weird problem that makes it necessary to sense the four wires off of a bipolar stepper motor(A-,A+,B-,B+) and translate them back into the pins that controlled the stepper motor driver ...
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34 views

What type of thermal paste for cooling a stepper motor?

My little Nema 11 stepper becomes hot when I use it to hold a position. This is quite normal since it use 1.3 A of current. My plan is to use the big aluminium supporting bracket as an heat-sink too. ...
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33 views

What device to power 4 directional coils to rotate magnetic field

I am trying to make a solid state device that creates a magnetic field applied on an sample that can control the field direction and strength. My current design uses a 8 coil stepper stator that has ...
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1answer
167 views

No protection if a powered stepper is turned manually?

It is not clear to me what happens inside the stepper motor when it is manually and rapidly rotated in clockwise/counterclockwise, overcoming the torque of the motor. As I understand, fly-back diodes ...
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1answer
41 views

Powering a Rasperry Pi Zero, Arduino Uno, 2 steppers and a servo from same supply [closed]

For a project I'd like to use a Raspberry Pi Zero as a web server interface to receive and send data to/from an Arduino Uno which will control 2 stepper motors and a servo. I would like to have only ...
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27 views

Detect stepper motor movement using a Hall Effect sensor

Is it possible to detect that a stepper motor is rotating using a Hall sensor against its body? Kind of a simple detection mechanism for motor stall without moving parts.
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67 views

Non blocking communication between 2 Arduinos

I have a nema17 stepper motor and a WS2812B based LED strip (60 leds) and an Arduino Nano. The goal is to update the brightness of the led strip based on the motor position as frequently as possible. ...
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Help to construct a State space model of a unipolar stepper motor with shorted phases

I hope to get some help on an interesting task - I cannot seem to get my model to work which is my I ask for help here. I am trying to construct a model of the unipolar stepper (seen below in the ...
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1answer
38 views

Choosing proper stepper motor, motor driver and power supply combination

I need to run 15 stepper motor simultaneously with different duty cycles for a mechanical study. However as a mechanical engineer my knowledge on the electronics is not much more than none. Could you ...
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22 views

Wiring Stepper Motor / Placement of Stepper Motor Driver

I'm making a CNC-like machine and I'm in the process of designing PCBs for the head assembly. Currently I have stepper motor driver (with 100uF caps on the power line) on the head assembly and I'm ...
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43 views

Stepper Motors that are connected to A4988 drivers shake and miss steps when MCU connected to galvanically isolated relay. What may cause this?

I have CNC machine that I built as a weekend project, it uses GRBL 1.1 and a custom Atmega328p board that I designed. It is based on the grbl Uno adapter plus the laser capabilities that I added. At ...
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56 views

1-10Hz frequency count translated to PWM for stepper motor RPM

I would like to control the speed of a stepper motor based on an input signal that consists of short 12V pulses at a varying frequency of 1-10Hz. I know this is an easy task with a microcontroller but ...
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1answer
34 views

Nema 17 stepper motor(ks42sth34-1504a) not working

I am trying to connect a new Nema 17 stepper motor, ks42sth34-1504a, using TB6600. It is a 6 wire stepper. While measuring resistance for identifying coils, only one pair(1 and 3) shows any ...
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1answer
43 views

How to wire ATMega32U4 Hardware Serial to Arduino Mega2560?

I’m designing a custom, Arduino Mega2560 based, PCB for my project. One of its job is to run a bipolar stepper motor via a TMC driver amongst many other things. From what I know, the AccelStepper ...
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1answer
59 views

Programming stepper motors to smoothly show value that is refreshed at certain intervals

I am making analog speedo and rpm gauge for both a bike and a car using x27.168 stepper motors and AX1201728SG motor driver. I have encountered quite a problem with showing data that is not constantly ...
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101 views

How to control a unipolar stepper motor (2A/phase) with MOSFETS

I want to control my stepper motor (103H7123-0440) with MOSFETS (IRFB31N20DPBF), however the stepper doesn't turn. I can't understand why it has problem and I would appriciate any help. I have ...
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1answer
67 views

Can a power bank power a stepper motor with these specs?

I'm a noob at EE and I'm doing a school project that I'd like some input on. I'm planning to use an Arduino to control a stepper motor and I want to use a typical power bank that would be used to ...
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1answer
40 views

Stepper Motor angle after gear

I wanted to ask a relatively simple question: Currently I am using a 3 phase AC motor that has a Gearbox torque of 5.1 Nm. A 16 teeth gear is attached to the shaft and this is connected to a 72 teeth ...
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2answers
56 views

What does “point mode” and “track mode” mean for a closed loop stepper motor

I have this closed loop stepper motor and driver bundle: https://www.omc-stepperonline.com/closed-loop-stepper-kit/ye-series-1-axis-closed-loop-stepper-cnc-kit-2-0-nm-283-28oz-in-nema-23-motor-and-...
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37 views

Can a voltage higher than 5V be applied to the 28BYJ-48 (5V) stepper motor?

I want to automate my roller blinds by using an ESP (NodeMCU) and I was thinking of using a stepper motor. I had a 28BYJ-48(5V) stepper motor laying around with the ULN2003 driver it came with. ...
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1answer
69 views

Driving a NEMA11 stepper motor

I got a NEMA11 bipolar stepper motor rated at 3.8V @ 0.67A, 5.6Ohm and 4.2mH. I thought to run it with the D1 mini powered via USB and using its 5Vout for the SN754410 H bridge and motor power: ...
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35 views

Stepper Motor NEMA23 and driver A4988 matching problem?

I am experimenting with a stepper motor NEMA23 with the following specifications: Rated current: 2.8A/phase Resistance/Phase: 0.9 Step Angle: 1.8 Rated Voltage: 2.5 Inductance/Phase: 2.5 mH Holding ...
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32 views

Is my calculation for stepper motor peak current correct?

I'm planning on using an RS PRO 892-8732 bipolar stepper motor for a project and was following an online guide to familiarize myself with stepper motors. As the motor is bipolar, I'm also going to ...
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1answer
62 views

What is in/out traction frequency in a stepper motor?

I'm referring to this spec sheet for a stepper motor. EDIT Just to be clear, this is not an "I want advice on what motor to use" type of question. I just want to know what "in-traction ...
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18 views

Writing to XTARGET resets TMC 5130 stepper driver

I am interfacing TMC 5130 stepper driver via spi. I loaded initialization example form 25.1 page 109 of the datasheet. Everything goes well until I command the driver to move the motor by writing to ...
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1answer
71 views

Stepper motor and torque

https://www.faulhaber.com/fileadmin/Import/Media/EN_AM1524_FPS.pdf I am using this motor with a 250:1 planetary gear drive, I am moving a mechanism that requires .3 inch pounds of force. The company ...
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49 views

Steppers will hold position and vibrate when sent xSTP instructions but won't move at all

Edit: setting the Wait time to 0.1 causes it to make music, yay? I've managed to get the steppers to react to xSTP with this code: ...
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1answer
105 views

How to make more precise a CNC?

I have a problem with precision for my CNC machine, when I try to draw a diagonal line on paper. I use 3 unipolar stepper motors (RS 440-442) for 3 axis (x,y,z.) These 3 motors are controlled ...
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2answers
372 views

DC motor with motor driver included

I'm trying to make a kit for my students for online schooling next semester. On one of the modules, I want to teach them how to control a DC motor using a microcontroller and a 6V battery pack. ...
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32 views

Incorporating Additional Devices in Custom PCB

I've been tasked with designing a custom PCB based on a prototype I made this past year. This prototype uses ST's NUCLEO-F030R8T6 development board along with some stepper motor drivers (AMIS-30543) ...
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147 views

How to protecting stepper drivers from manual motion?

I am trying to figure out a way to protect my stepper drivers from manual motion of the motor. To make this more clear, the system which these steppers are being built into allows for both computer ...
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35 views

Solution for EMI on signals in a connector?

I have PWM signal and PSU signals coming from switch mode PSU to our machine. The motor drive boards that run the stepper motors in the machine are located in the PSU. At the moment the outputs to ...
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35 views

Insight on backup safety feature for linear actuator using NEMA stepper motor in commercial product?

I am of intermediate skill level with electronics and hardware. I am working on a linear actuator concept prototype with a partner that we plan to iteratively develop and eventually take to market for ...
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50 views

Arduino UNO TMC2130 and Nema 17 Motor

I currently have an Arduino UNO, a stepper driver (the TMC2130 v3.0), and a Nema 17 stepper motor. I was trying to find the correct way to wire the driver and motor to the Arduino in order to simply ...
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92 views

Running multiple 4-wire bipolar stepper motors without drivers etc

I need to use about 120 motors for an arts project. My budget is limited, as are my skills. I need linear motion. I have found well-priced stepper units driving lead screw and nuts at sensible prices. ...
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1answer
33 views

Help find component - MOSFET

I have a old motor driver board, for which I don't know the current capability. So I tried to find the datasheet of the MOSFET on the board. But without success (Bing search in various variants) This ...
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36 views

Closed-loop position control with a stepper motor

Disclaimer: I understand this might not be the optimal setup for this application, but this is what I currently have available. My controller is connected to: a stepper motor with a lead screw for ...
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1answer
59 views

Control stepper motor with low current and high current

I am learning about stepper motors and i have the following question. Let's say i have a bipolar, 2 phases, NEMA34 with a 5A rated current. I am using a driver capable of delivering 5Amps or 2Amps at ...
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61 views

can we use a smps to light a 15w bulb?

i am making a motorized slider(nema 23 stepper motor), where i have also included a power supply of(12V 20A SMPS - 240W) i also need to include a 15watt bulb in it, is there anyway to do it or do i ...
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64 views

What is the current classification of linear motors used for positioning and scanning applications?

I am doing some research on positioning and scanning systems but I am encountering some problems trying to categorize linear motors. I can't understand what type of linear motors based on induction ...
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1answer
41 views

Driving low voltage P-MOS N-MOS half bridge with dead time control, without bootstrap and one control line

I should need a driver of a PMOS NMOS bridge with dead control controlled by a one line from the microcontroller (because I have to use several PWM lines) that inserts a dead time control to avoid ...
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2answers
124 views

How to electric motors work? [closed]

I’m planning on building a electric bike/motorcycle and was wondering on what affects motor speed and torque. How does voltage affect a brushed motor and brushless motor? I would be powering this off ...
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19 views

Drive 4wire stepper motor with PWM type CNC controler

How can I drive a stepper motor using PWM technique controller, since the stepper motor has 4 wires at 24v? I want a confirmation.
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2answers
133 views

Stepper motor vibrating and not turning

I've been stuck on this for a few days now and I can't seem to get my stepper to work. Last week, I bought a stepper motor (nema 17 size, 1.5A) and an A4988 driver to play around with. I hooked it all ...

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