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Questions tagged [stepper-motor]

A kind of motor that moves in steps.

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1answer
25 views

Building a water jet cutter using Arduino, CNC shield and GRBL firmware

I am building a water jet cutter using Arduino Uno and CNC shield for control. The CNC shield uses A4988 drivers to control the stepper motors. I uploaded the GRBL (for this shield) firmware to ...
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1answer
38 views

Understanding the Design of Common ULN2803a Motor Driverboards (use of the capacitor in particular)

I'm studying a popular motor driver board based on the ULN2803a Darlington Array chip (top and bottom pictured below). A capacitor is between the common diode/flyback trace and GND. Does the ...
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1answer
32 views

Using Micrologix 1400 (1766-L32BXB) FET outputs to control frequency input to ST-M5045

There is a minimum current requirement in order to use the FET pins on the Micrologix controller of 21mA, and the output voltage of the pins are 24V. The ST-M5045 stepper driver data sheet says in ...
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0answers
56 views

Steper motor modeling [on hold]

I would like to predict the electrical energy consumed by a steper motor and also to numericaly simulate the mechanical and the electrical behaviour of a steper motor. Pleas can you help by some ...
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1answer
25 views

Need to synchronize stepper motors

am using two A4988 drivers to control two NEMA 17 stepper motors with 1.8 degree full step resolution on Rpi 2b. I am using them as wheels. The motors are initially given ramp signal using PGPIO ...
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0answers
149 views

damping ringing in stepper motor phase current

I am modifying a stepper motor control circuit that uses Allegro A3959SLB PWM motor drivers. The purpose of the modification is to drive a more robust stepper at its rated 2A rms current, driven by a ...
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1answer
40 views

Finding geared stepper motor speed

I was trying to find the stepper motor speed and the datasheet shows that it has a gear ratio of 10(the data circled with red). I assume this means that the stepper motor has an attached gear head. My ...
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1answer
48 views

How does G-code determine what pins I used to set CNC motors at? [closed]

I want to develop a simple C# application to control a self-made CNC machine using Arduino Uno. I want to use G-code to accomplish that. Now what I don't understand is how G-code is interpreted in ...
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0answers
22 views

chances of A4988 motor driver creating back current through the STEP and DIR pins

I am trying to drive 2 stepper motors using A4988 motordrivers and I am using the following circuit diagram as shown in the image Only change from the above circuit diagram is that I have not ...
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1answer
46 views

Stepper motor - How to choose a driver

I want to know how can I choose stepper driver, once I have decided on the stepper motor that I wish to use. This is how I understand it: If a motor can draw a current of say 0.5 amps and operates on ...
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1answer
31 views

Problems with Stepper Motor & SN754410

I am using a stepper motor for a project, it is the first time I've used one. The internet said it was very simple and easy but that's not true for me. I bought this motor from digikey https://www....
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1answer
55 views

Sudden raspbery pi power cut or random long delay when running stepper motor using pigpiod

So I wrote another program that can run stepper motor nema 34 using leadshine DM860 driver and this is the example of my code: ...
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1answer
22 views

Stepper driver sine wave

I have a TB6660 Stepper driver and I gave pulse from an Arduino board. According to the TB6660 datasheet, drier should out a sine wave that created by using give square wave from Arduino. But, when I ...
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2answers
47 views

AttributeError: 'NoneType' object has no attribute 'send' pigpiod

So I create an another program that can run stepper motor clockwise and counter clockwise with a ramp up and ramp down in there and adding limiter switch on GPIO 16 and 26 to stop the ...
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0answers
29 views

Can I operate my (typical) 8mm Bipolar stepper like a BLDC?

My project involves use of these tiny steppers in an open loop- I'm not yet certain whether I can get away with the torque compromise that microstepping would require but it would be desirable. ...
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2answers
70 views

How close to a stepper motor do I need to shield the wires?

I am trying to shield the cabling on my CNC mill. The motors, unfortunately, do not have connectors but instead have wire leads coming out from the motor housing. I can cut those wires about an inch ...
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0answers
77 views

Smoothing steper motor movement when chage the direction

So, I'm driving a NEMA34 bipolar stepper motor and it is being driven by a DM860 leadshine. I create a program in raspberry pi using pigpio library, the program that that make stepper motor change ...
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1answer
43 views

L293D Enable pins can reduce chip heat?

I use a L293D to drive a 7.4V (280mA/phase) stepper motor. I rotate the small motor 1 rev per DAY. The L293D is hot all the time even though the motor turns only once per day. I saw there are “Enable” ...
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1answer
37 views

Single battery for different voltage components

So I have a 12V DC motor and a 6V stepper motor. Ideally, I would like both of them to draw from the same 12V battery pack (due to build constraints). The DC motor will be fine but the extra 6V ...
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2answers
88 views

Is a Switched Reluctance Motor (SRM) a AC motor or a DC motor?

Is the current in a coil of an SRM alternating or not? I understand that we are giving a DC supply (say battery) but isn't the current reversing its direction. If yes, then it would be called AC but ...
1
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1answer
55 views

Stepper Motor Voltage

I am having a problem making a stepper motor run. The problem is that the voltages that I am reading from the motor never reach zero (they move from a high voltage to a smaller voltage) so they never ...
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0answers
17 views

Phase voltage and torque of stepper motor

When I use a chopper type driver for drive a stepper motor how it effect the rated phase voltage? Is there any relation between rated phase voltage and running torque of the stepper?
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1answer
60 views

How to get current flowing through the darlington transistor as a switch for a stepper motor?

I have a 17PM-K307-05VS unipolar stepper motor. I am building the driver for the stepper motor. The exact rated voltage and current are unknown, it seems the motor is old or discontinued, but the ...
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2answers
104 views

Which motor is slower than (and can be swapped with) a 28BYJ-48 stepper motor?

I have a DMX light that rotates a gobo using a 28BYJ-48 stepper motor. It has four DMX responsive settings: off, slow, medium, fast. However 'slow' is still about four times too fast for the effect I ...
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1answer
48 views

Pulse width of a stepper driver

I have a stepper motor that has 1.3Nm holding torque. Im using TB6560 driver at 3A phase current and half step mode. And also Im using Arduino for generate step signal for the driver. If I generate a ...
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0answers
33 views

Control a stepper motor with a 3-phase controller

Is it possible to run a stepper motor with a closed loop 3-phase controller? What i have seen is, that some people short A- with B-, so that it is tranformed into a 2 coil 3 phase system. So i tried ...
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0answers
35 views

Motor or a Servo

I'm looking to build a motorized throttle quadrant replica of a Boeing 737 that would connect to Flight Sim. I do have a quite good idea of what I am trying to do and how to do it but I am fairly new ...
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0answers
19 views

L9935 stepper motor driver handles only the first command

I'm interfacing the L9935 two-phase stepper motor driver with Arduino. For this purpose, I've followed js_online's guide here. The only difference is that I use the original connector on the board. ...
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1answer
33 views

How do I run two Arduino sketches at once? [closed]

I have got two stepper motors that I want to drive at the same time using an Arduino. They both work with 2 separate DRV8825 stepper drivers that are connected to the Arduino. I can get them both to ...
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2answers
188 views

Increase the ramp up stepper motor performance

I'm driving a NEMA34 bipolar stepper motor with the following specifications: Holding torque 5.9 Nm Step angle 1.8° Resistance / phase 0.33±10% Ω Inductance / phase 3.00±20% mH Max load axial 65 N ...
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1answer
59 views

Is a stepper motor the best option - if not what

I have a project where I want to have a 3-400kg mass rotate around its axis. Based on my calculations, I am looking for a hold torque of approx 100-120Nm I have considered having a worm drive ...
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1answer
43 views

Control stepper motor with PLC?

I'm pretty much brand new to both stepper motors and PLC's and electrical in general, although I have an idea of the theory of how they work/what they do. I am trying to achieve is to be able to have ...
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2answers
46 views

Driving a hobby stepper motor with an industrial PLC

I am working with an industrial PLC, the Beckhoff BX9000, with 24 V digital outputs. I am looking to drive a hobby stepper motor with Polulu's 'A4988 Stepper Motor Driver Carrier', which accepts logic ...
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1answer
56 views

Interfacing with (Two) Full-Bridge PWM Motor Drivers to Control a Stepper Motor

I am working to interface with an existing PCB with on-board Full Bridge PWM motor driver chips, which drive a stepper motor. The interface lacks any kind of standard step (clock) or direction signals ...
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2answers
53 views

Why is the common lead of unipolar motor connected to the high level voltage?

I'm trying to gain a deeper understanding of DC stepper motor because I'm using them for an arduino project. I was wondering about why the common lead of unipolar stepper motors is usually (always?) ...
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1answer
111 views

Picking a power supply for a TMC2130 stepper driver and motor

I'm trying to pick a power supply and need a little more guidance before I'm comfortable spending money on one. This site explains how to calculate your figures for power supplies but isn't too ...
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0answers
67 views

When is it appropriate to connect two steppers in series?

I'm considering building a machine that would have 4 axes, two of which would require two steppers each to allow for the desired mechanical layout. These pairs would have to run synchronously. That's ...
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1answer
167 views

Reduce idle current consumption of 28byj-48 stepper motor

I have a question to ask. I'm using this stepper motor and found out that even the motor stop to the desired position, it still feeling hot and I guess it still consuming the same current as it move. ...
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1answer
222 views

How to correctly wire a SilentStepStick (TMC2130) to Arduino? (Noob question)

Ingredients: 1) Arduino Uno 2) SilentStepStick Stepper Driver (TMC2130) (datasheet) 3) Fully Independent 24V and 5V power supplies 3) Driver code from: watterott 4) Board pinouts I've wired up the ...
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4answers
212 views

1/256 microstepping stepper motor

I am currently working on project that uses the spectrum created by the diffraction grating. I am using a stepper motor to rotate my grating. I want the stepper motor to move exactly 0.01 degrees and ...
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5answers
257 views

Stepper Motor acceleration profiles for short runs

I've done a fair bit of reading on stepper motors and acceleration. I had to wade through a lot of different strategies with a lot of calculations, including one which called for several candles, and "...
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0answers
115 views

STM32F407 - how do I run one motor at a time? Why do they ignore delays..?

I'm a newbie. I'm using an STM32F407 discovery board, and I want to control 6 stepper motors using PWM, especially OPM(One Pulse Mode). Till now I've made 3 stepper motors work using Timer 8 (CH1, ...
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1answer
37 views

Stepper motor driver voltage question

Attempting to drive the stepper but noticed that the motor is rated for 3V 2A and both of these boards feature a motor driving voltage of 6-30V or 7-30V Attempting to drive a Wantai 57BYGH420-2 ...
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0answers
23 views

Identifying a motor from pinout (electric wheelchair)

hope this is the appropriate place to post. I have been gifted a set of Alber efit e25 add on wheel hubs that convert a normal wheelchair to an electric one. I have non of the control mechanism or ...
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1answer
105 views

how can I motorize hand cranked standing desk

I already have a hand cranked sit stand desk, which I would like to motorize without too much damage to the existing mechanism and (for not too much money). As it is hand cranked, there is an existing ...
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0answers
162 views

Run Stepper motor with more torque and smoothly

I have a stepper motor and its torque curve is below. I am trying to get more torque from the motor. Therefore, I decided to setup my driver to half step. I am using an Arduino for generate the ...
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1answer
85 views

best choice of a stepper motor to lift a 3kg load [closed]

first time working with a motor.am designing an egg incubator and need a stepper motor to tilt the egg tray at 45 degree occasionally.there are two egg trays each is attached to the incubator wall and ...
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2answers
99 views

help me to run stepper motor

I have a stepper motor ( Model = 23KM-K381-01V , NO.T6Z23-07 , DWG NO.56AA80112). Motor Specifications: Motor is unipolar , 6Wires , 2A current , 1.8 deg step angle.. Motor is second hand. I do ...
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0answers
31 views

How to use many separated A4899 for controling steppers

Basically, I was seeing the diagram for the A4899, in which mentions a logic power supply(image for reference), the thing is, how would it work if I needed more than two drivers? I was worried that ...
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0answers
37 views

help me to finalize my stepper motor ,rotary encoder and stepper driver.

I am buying this stepper motor (JK86HS78-4208) having rpm of 0-800 and the datasheet is present here: (http://interface.im.taobao.com/mobileimweb/fileupload/downloadPriFile.do?type=1&fileId=...