Questions tagged [stepper-motor]

A stepper motor (or step motor) is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor (an open-loop controller), as long as the motor is carefully sized to the application. (Wikipedia, 2014)

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Why use timing belt drives in Stepper Driven Robotic Arm

This may be a noob question. I am sorry if it is but I am new to this field. I am working on a design of SCARA Robot and I am using Stepper Motors to drive it. In many youtube videos, I have seen that ...
Nirav Joshi's user avatar
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Which kind of motors and how powerfull should they be for a robotic arm

I am building a robotic arm with these specifications: 1 meter long approx. 1kg weight it is made of 4 motors. (2 at the base. One for rotating the whole arm left and right and another one for ...
James Petri's user avatar
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How to know what type of stepper motors to use when designing a robot [closed]

I am talking about robots like this one: http://www.meccanotec.com/step781b.JPG How would a person know what type of motor to use in design of such a robot? What I want to understand is that stepper ...
quantum231's user avatar
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How can such a small motor produce so much torque?

I have only recently gotten into robotics - so I'm not that familiar - please excuse me if this is a silly question. I was looking at servo and stepper motors. I can see that a lot of servo motors ...
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stepper or servo torque in one direction only

What I want to achieve is this. I have a rod, which I want to move only in the direction of its axis, but move it (ideally) without resistance, meaning that If i pull the rod, I want it to follow (...
MirrorMirror's user avatar
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How to make a CNC machine from scratch?

I want to make my own CNC machine from scratch because it's cheaper to make than buy a premade one. I noticed that some machines go for tens of thousands of dollars and I cannot understand how they ...
Noobmaster69's user avatar
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Why are brushless servos more common than steppers in Cobots?

Essentially every cobot I've worked with uses BLDCs instead of stepper motors in the joints. When searching for answers as to why I see a lot of posts that suggest one or the other, but nothing ...
Ernest Wright's user avatar
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Which motor to use for self-balancing-bot?

I am building a self balancing bot using MPU-6050 Arduino Mega 2560 100 rpm 12V DC motors Currently I have used two 100 rpm DC motors in the bot. The pwm signal is given to the bot on the basis of ...
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How can I calculate speed and torque of stepper motor screw

I want to choose stepper motor screw with slider for use it to shift cube with side 5 cm and wight 250 g . I found this motor .. how can I calculate speed and torque of slider
Adel SaadEddin's user avatar
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What stepper motor driver to use?

I want to control a DVD drive's stepper motor with an arduino uno, but at the moment I'm not sure what kind of motor driver will work for that. I am currently looking at this one I have no idea ...
Boela's user avatar
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What is the best way to plug in more than 3 stepper motors into a Arduino Uno board?

I'm developing a 5 axis robotic arm with stepper motors and I am getting around to ordering most of my parts. I plan on using 5 EasyDriver shields to drive all of my motors. I am also planning on ...
Henry Jeff's user avatar
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Sensing torque of stepper motor

I need to sense the torque of a stepper motor at any given time. I'm planning to tension a wire by using a stepper motor, and in order to keep the wire at a fixed tension I would need to know the ...
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Servo coupler size needed

Hey all I would like to know what type of coupler I would need for this type of servo? The specs are: I'm guessing that the 25T means it has 25 teeth in the part that holds the adapters? So I would ...
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Which mechanical device could repeatedly present an ID tag to a card-reader

I'm trying to build a test-automation robotic arm which can repeatedly present an ID-tag (such as RFID or NFC card or fob) to a card reader. I suspect our reader fails either (a) after hundreds of ...
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Stepper does not turn

I always wanted to have a CNC to make PCB quickly at home. Finally, I got a 7x7 kit from zentools recently and put it together. I attached a battery powered screw driver to 2nd shaft of the stepper ...
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Need specifications to operate this stepper motor with RPi or Arduino

Here is the disassembled stepper motor that I'm working with: Contains the photo of the motor, and the label that's on the bottom of the motor. I need to identify this stepper motor that was ...
SiddharthaRT's user avatar
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What is minimum torque required for CNC stepper motors and spindle for aluminium milling?

I am planning to buy CNC mechanical skeleton without motors, spindle and controller. I will be using the CNC mainly for aluminium milling. Are there any specifications for minimum torque requirement ...
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How to detect the position in a linear actuator?

I was planning on 3D printing my own 30 cm stroke length 3D printed linear actuator and I don't know how I could read its position, or tell it to go say to 16.5 cm. I used this video, 3D Printed ...
Mito's user avatar
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Is there a way I can achieve Torque control from pulse control?

I am using the Contec SMC-8DL Motion control card to control the Oriental Stepper motors via the AZD-C driver. The Contec helper functions only allow for sending pulses to the driver, is there a way ...
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How to calculate Current for pancake stepper motor - To change in Pronterface

DISCLAIMER: New to electrical engineering topics. I'm a 3d-printing hobbyist. I don't know all the Jargon being used but trying my best to keep up. PROBLEM Recently bought a Nema 17 stepper pancake ...
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What is the difference between the holding torque and stall torque of a motor?

Do the terms holding torque and stall torque imply the same thing? The information on torque for these stepper motors is given as holding torque. While these servo motors have the torque given as ...
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L298N briefly works, then shorts when controlling Nema 17

I'm trying to control a Nema 17 stepper motor with a L298N H-Bridge. My wiring is as below (except I'm using a ESP8266 not a YUN, and I have a mains 12V supply rather than batteries). This is ...
iwishiwasaneagle's user avatar
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Is missed step detection of a stepper motor done is software or hardware?

I remember seeing a video of the Prusa i3 Mk3 printer. It can detect when the stepper motor misses a step, so it can home itself again. I would like to know how this is done! There are a few options ...
Mikael Lindqvist's user avatar
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Kinect V2 (Arm/Hand Reading) to G-Code

I am very new to this space and would greatly appreciate some clear guidance. I have a Raspberry Pi 3, Arduino Mega 2560+Shield, and Kinect v2 + PC USB cable adapter. I am currently building the ...
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How do I choose the stepper motor torque for my robotic arm

I'm a communication engineer so my knowledge about robotics is very little. I know the basic formula of torque T=mgL in my project I have 2 arms & 2 motors i used a torque calculator online ...
Anas Albakri's user avatar
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Design of an equatorial mount [closed]

I am considering designing an equatorial mount for astrophotography. I have been researching on the best way to do that and I am thinking on using a stepper motor with a gearbox. The thing is that it ...
borias23's user avatar
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Stepper Motor Torque [duplicate]

Tried searching for this answer in a simple way but can't seem to find the answer.. I have a 3 axis Bipolar Nema 17(Took off my 1st 3d printer =) ) robotic arm(Homemade) and provides 28oz-57oz of ...
user17381's user avatar
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Detecting "zero" when turning a potentiometer from a stepper motor [duplicate]

We're using a stepper motor to control a knob on a piece of audio equipment. The stepper is coupled to the potentiometer shaft with a simple coupler. Right now, in order to get to "zero" on the ...
drj's user avatar
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Stepper Motor For "Cable Car" System

I am a programmer with a lot of experience in IoT but somewhat new to actuators and robotics. I would like to create a "Cable Car" which consists of two stepper motors and a pulley. The motors would ...
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Using a six wire stepper motor with L298n

I am using a L298n IC and (not a driver shield) and an Arduino. I would like to know how to use the IC with the Arduino to run a six wire stepper motor. Could I have a detailed explanation for ...
sohaib shaikh's user avatar
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Panasonic MSMO22F2G (stepper motor hook-up)

I have a Panasonic MSMO22F2G Servo Motor that I'm using as a stepper motor. The motor has 4 wires coming out of a port farther to the front, and 11 wires coming out of a port towards the rear of the ...
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accelerate a stepper using arduino AccelStepper starting with a pre-defined speed

I've read the AccelStepper documentation on airspayce.com and it seems to be not possible to accelerate a stepper starting with a speed greater 0. Acceleration always starts from speed=0, I tried it ...
mika's user avatar
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Looking for a way to scan cylindrical objects [closed]

Can anyone recommend a commercial or solid, reliable DIY solution for scanning cylindrical objects? I've seen a couple of simple hacks for flatbed scanners, but I'm looking for something I could make ...
Hairgami_Master's user avatar
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What is rotor torque? [duplicate]

On my stepper's datasheet, it has the category "rotor torque" (labeled in N-CM). What does that mean? Is this the torque it has can supply when turning? (Hopefully)
Anonymous Penguin's user avatar
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384 views

Pan and tilt bracket for a stepper motor [closed]

Currently, I'm using a pan tilt bracket that works with the servos I have (spark fun product 9065), and are generic to all servos. However, servos aren't accurate enough. I'm looking at other options, ...
Scott's user avatar
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How to build a liquid filling machine using piston? [closed]

My team developed a filling machine for liquids which uses a piston to measure and deliver volumes 0.1 to 1 liters into bottles. It is built mostly with mechanical parts and we'd like to replace most ...
Igor Gatis's user avatar
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2k views

Specification calculation for choosing a proper stepper motor for Ball Lead / Screw system

I'm trying to build a motorized stage which moves in one direction as below picture based on this article. Desired characteristic properties are: 1. screw length = 150 mm 2. screw diameter = 14mm ...
Mehran's user avatar
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Will this have more or less lifting strength

Bit of an engineering question. If a snake robot is 100 cm long, and every 10 cm is another motor. Would the robot lift more weight, the longer/more motors attached to it.. or is lifting ability ...
Carson's user avatar
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Crock Pot Knob Turner

I have a Crock Pot with an analog knob and would like to find a way to turn the knob by using and appliance timer. I have no idea where to begin. I need help. Thanks
Jim's user avatar
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What type of actuators are needed for a high accuracy, low load weight robotic arm?

I am trying to build a robotic arm that needs to lift a very low amount of weight (between 0.01-0.05kg) at a time, but it needs to be very precise (+/- 1mm accuracy ideally). The robot really only ...
Skrish's user avatar
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Why are some motor shafts stiff while others spin freely when not powered?

Most servos and steppers I've worked with are able to spin manually when no power is applied, but I've come across a couple which are stuck in their position. I'm not sure if they are just very ...
waspinator's user avatar
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How to make a stepper motor rotate and come to a position of certain degrees (say for 90 degrees) from any initial position?

I tried this code and it worked: ...
Dinesh's user avatar
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What would be a good message type for stepper motors

We have a little robot in which we've built the actuators with two stepper motors for x and z axis and a dynamixel for the gripper. I know that the sensor_msgs/msg/jointstate message type would be ...
Guela kais's user avatar
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Record and playback stepservo backdrive

I have a stepservo motor with a high precision encoder. I'd like to use it in "teach" mode where I can move it around with my hand (backdriving), and then playback whatever motion I did. ...
Scott Paterson's user avatar
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Stepper motor connector identification

I'm trying to identify a connector on a stepper motor so I can purchase a replacement for the missing female connector. Just to be clear, I'm not asking where to buy the part (since I can probably ...
computercarguy's user avatar
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Simplest way to drive a Nema 17? Without Breadboard and all that gobbledygook

I would like to setup a nema 17 with a belt... is there like some chip board / module with everything built in where I can plug in the stepper and program it to go forward and back without all the ...
Jeff's user avatar
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How do I calculate the duration of a movement of a stepper motor

my program controls a stepper motor. The API of the motor allows me to set the maximum speed, maximum acceleration, maximum deceleration and the jerk. I would like to pre-calculate the duration of a ...
trashpanda007's user avatar
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How can I achieve a square pulse train while sending pulses one pulse at a time to a stepper motor?

I am trying to control Stepper motors which has a pulse input driver. I have a speed of 1000pps, and I want to move 1 pulse at a time. So that means 1 pulse will take 1ms. After I send a command to ...
daRula's user avatar
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Does the Grbl have S-curve or harmonic velocity profiles?

I'm working on a machine and the position has a high impact by the jerk and acceleration of the machine. I'm using Grbl for my machine. Does Grbl has S-curve or Harmonic velocity profiles?
Khushal Badhan's user avatar
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Simulator for NEMA17 (stepper motor) and A4988 (stepper motor driver) along with Arduino

I want to simulate an Arduino MEGA (or UNO) controlling a NEMA17 (stepper motor) using A4988 (stepper motor driver). I couldn't find the stepper motor and driver on TinkerCAD. Can this be done in ...
GlassAnimals's user avatar