Questions tagged [stepper-driver]

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76 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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34 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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27 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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91 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
42 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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1answer
35 views

Electrical braking a stepper motor (revisited)

My question is similar, but not identical, to an older question about electrical braking a stepper motor: Can I use electrical braking with stepper motor? In my application I do not need to brake the ...
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2answers
114 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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2answers
98 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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46 views

Powering Arduino and stepper motor from a single 12 V power supply

I am trying to control mechanism involving a nema 17 stepper motor. I use an A4988 stepper driver and an Arduino Nano both powered by the same 12 V/3A power supply. So far I have fried or crippled 4 ...
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50 views

Barn Door tracker motor battery selection

I am planning to build hinge based barn door tracker, as in the attached picture Its a simple meachanism for astrophotography aid, camera is mounted on one plate and other plate is connected via ...
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9 views

Controlling 1.5A Stepper with Easy Driver

I have a 1.5Amp stepper motor (nema 17 size) and I want to control it with an easy driver v4.4. The maximum output per phase for this chip is 750 milliamps. My question is: can I use this board to ...
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1answer
60 views

Driving Stepper Motor with Sine Wave

I am attempting to drive a stepper motor where each phase draws 1 A at 3.5 V using a sine wave oscillator that outputs two signals 90 degrees out of phase with one another. At the outputs of this ...
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347 views

Why don't stepper motors ring indefinitely?

I don't have much of a EM background but I have used stepper motors for things. What's not clear to me is why don't stepper motors ring indefinitely? Excluding physical friction, what actually causes ...
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29 views

Stepper Driver TMC5160 strange mosfet behaviour

So I made stepper driver PCB with the TMC5160 (datasheet) but I noticed something weird about about one of the motor outputs. Of the 4 motor outputs (A1, A2, B1 and B2) B2 always seems to have some ...
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26 views

Can a faulty motor cause issues to another motor?

This is regarding the circuit of my 3D printer mainboard. I had an obersvation: It has a cooling fan (40X10 24V) which is having issues lately - it stops working sometimes, and when pushed to rotate, ...
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1answer
45 views

What is the difference between these DVR8825 circuits? (stepper motor driver)

I use the one that is down and it works fine, but since I don't understand the difference between these circuits I decided to ask. Both circuits I found online, without explaining what is the ...
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1answer
32 views

Arduino controlled stepper motor alternate that can be powered with AA batteries?

I would like to make an automatic fish feeder using a low power microcontroller (probably an Arduino Mini Pro, unless there are better suggestions). Something like this. It is basically a drill bit ...
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2answers
42 views

Can I use LM3481 for a system where no-load status can occur?

I have made a step motor driver board with LM3478 to supply 24v from 12v input. LM3478 The problem is that a user can power the board without the stepper connected board which drive the board to no-...
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37 views

Missing steps while rotating stepper motor with gear 20:1 and driver tmc5160

as per the title I'm using Nema23 stepper motor and 20:1 gear and tmc5126 stepper driver. 1) I'm providing 3amp of current to motor and 4096 of microstepping. 2) Motor was working on same ...
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1answer
89 views

ATX PSU turns itself off when uploading sketch to Arduino

I'm trying to power a stepper motor with the 5V rail of an ATX PSU and control it using arduino. To keep the PSU running, I have shorted the PS_ON pin to ground. ...
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2answers
84 views

Stepper: Distribution of Microsteps within a full step

I am currently working on a project to precisely move a XY-table using stepper motors in microstepping mode. The goal is to reach 1/16 microstepping and there is an encoder with 4000 pulses per ...
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1answer
52 views

Tap into stepper motor signal

I was wondering if it is possible to tap into the signal either on the low power side (between motion controller and the stepper motor driver) or on the high power side (between the stepper motor ...
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706 views

How to calculate RMS current from the rated current? Are they the same in a stepper motor?

I want to use the TMC2130 driver with the stepper motor I show below. This driver has these main features amongst others: Integrated power MOSFETs handle motor currents up to 1.2A RMS (QFN package) / ...
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59 views

Stepper motor driver datasheet needed - Allegro Micro A6614SED-02A

I did a teardown of an HP PSC 2210 printer and scanner hoping to find a stepper motor driver (along with some other good stuff) but instead I found highly specialized parts, with little to no ...
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1answer
36 views

How to handle low voltage stepper motors?

So I've been looking at various NEMA-17 stepper motors, and I noticed that a most have an extremely low voltage. For example, on this page, there are NEMA-17 motors ranging from 2.8V to 5.4V, with ...
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1answer
70 views

Will the Stepper Motor 17HS3401 work fine with the TMC2130 driver? Or is the driver chip going to burn? Are they compatible?

I am considering whether to buy the stepper motor 17HS3401 of this catalog Current The motor uses a rated current of 1.3A. I need to connect it to the TMC2130 driver, which accepts just 1.2A with ...
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1answer
107 views

Which stepper motor should be enough to move a water valve and for the TMC2130 driver?

I need a stepper motor and a driver to control it. But I don't know which would meet my needs. I have an Arduino MEGA 2560 if that's relevant. Aim I need to close and open a Nupro valve with ...
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35 views

Uneven microstepping movement

I'm trying to control a stepper motor with an Allegro A4988 driver with microstepping. When advancing a few steps with no load, I can see that at full-step mode all steps have equal angle, but in ...
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1answer
82 views

Stepper Motor wiring confusion

I have got a 6 wire stepper motor. It's a chinese one (OKI KFL42LL) with Black, Brown, Orange, Yellow, White and Grey wire on it. Its specs are 8.7ohm and 7.5 degrees/step. I went through a lot of ...
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202 views

Controlling multiple stepper motors using a single driver

I want to control ~50 stepper motors using a single driver, and use only one Arduino pin to control each motor. Currently I'm using a single A4988 driver and a couple of 12v 1amp stepper motors to ...
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2answers
115 views

Why one stepper motor is twice faster?

I am using some stepper motors and I realized they are much slower than the stepper motors of OpenBuilds (http://youtu.be/GrjqW2MDCvM?t=3744). They're using less teeth on pulley too. Power supply ...
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130 views

Why stepper motor is slow with A4988 driver?

I'm using NEMA17 17HS13-0404S1 stepper motors with Arduino CNC Shield & A4988 drivers but I think they're much slower than they should be. Hard to explain how slow they are but compared to Ender 3 ...
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38 views

Stepper motor and driver selection

I would appreciate some advice on selecting a proper stepper motor and driver for my project. I plan to create an autopilot for my small fishing boat using a Raspberry Pi controlling a stepper motor, ...
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2answers
507 views

L298N heating up when driving a Nema 17 with Arduino

I've just bought a Nema 17 (Motor NEMA 17 40mm 1,2A 2,6kg/cm 1,8º 42STH40 1204A CNC) to build a pet feeder, and to control it I'm using a L298N driver I've also bought. I've wired everything together ...
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1answer
70 views

Delay between steps, given speed in mm/min [stepper motor]

I'm building a device that have to move in orders of thousandths of mm per minute. I've got suitable stepper motor and driver, it is working correctly but I'm unable to figure out the formula needed ...
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115 views

Stepper motor vibrates, without turning

I'm trying to get a stepper motor to work, but having issues. I've done a lot of debugging, but still can't figure out what's wrong. When I try to turn it around, it just makes a buzzing sound, and ...
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1answer
56 views

Capacitor to discharge upon switch open

Update Please evaluate this third attempt: This is my first electrical project, so please be gentle with me. I know very little about electronics. I'm building a machine that has a crank that users ...
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55 views

Stepper motor, why so many wires (10)?

I recently bought a stepper motor secondhand and out of curiosity opened up the back cover to see how the wires were connected, currently it looks like 3 phases are connected (4 wires, 3 phase wires, ...
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1answer
75 views

UL certification requirements

I'm designing a circuit board for a large industrial product which is intended to be UL certified, so the boss wants as many individual submodules to be UL certified as possible, including mine. The ...
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1answer
101 views

Two Different Charge Pump Circuit Variants. What Are Their Advantages?

While looking at the L6470 stepper driver datasheet I came across the following charge pump circuit suggestion (I will just name it Variant A). The charge pump is used to provide the "Bootstrap ...
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1answer
147 views

What is pros&cons of using a unipolar stepper as bipolar?

I know that it is possible to drive a unipolar stepper motor as if it is bipolar. Clearly, for example, we can ignore center tap wires of a 6-wire unipolar stepper and drive it using a bipolar stepper ...
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25 views

Using l6506 with digital pot to vary force output of stepper

I want to precisely control the amount of force being applied to a component - my plan is to drive my stepper linear actuator with the absolute minimum current to make it move, until it stalls out ...
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37 views

Stepper motor in high RF environment

I'm building a sort of "screwdriver antenna". In my case I have a motorized roller inductor. This motor is placed near the bottom of the coil (the coil is placed near the center of the vertical ...
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149 views

A4988 current limit formula: Where does the constant “8” comes from?

I am trying to calculate the VREF for my A4988 and while my A4988 is not from pololu I am using their formula over at https://www.pololu.com/product/1182 to calc the current limit. The formula used (...
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1answer
58 views

Why are stepper motors sometimes rated in AC voltage?

Now, I think I get why steppers are rated at (for example) 48VDC - as I beleive it's to overcome any back-EMF, and that's why stepper controllers are typically constant(/max) current devices - they'll ...
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1answer
188 views

Is A4988 and DRV8825 Current Limit Setting RMS or Peak?

I'm trying to aggregate information on config settings and current limit calculations for all the popular "StepStick" style motor drivers. However, I've noticed that while the older type (A4988 & ...
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1answer
95 views

Does supply voltage affects stepper motor driver heat dissipation?

Below is a block diagram of a stepper motor controller with an external mosfet h-bridge that drives one of the stepper's coils. Let's say that the coil has 2ohm DC resistance and 3mh inductance, the ...
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79 views

why stepper motor lose magnetism?

I have very old desktop style 3 axis cnc machine. There were 2 dc motors for X-Y axis and a unipolar stepper for Z axis. I replaced the old DC motors with unipolar steppers. I personally made the ...
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1answer
285 views

Should ferrite beads be closer to the stepper motor or to the motor driver?

Stepper motor, cable with ferrite bead, and dual H-bridge driver: I noticed that the cable that came with these motors had the bead closer to one end. Does it matter which way it's wired as far as ...
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452 views

Nema17/A4988 + LED display pump, 5v circuit not complete?

I'm trying to build a pump from Instructables, with no experience at all. I appear to be pretty close but the 5V line from the Arduino does not power the driver or LCD screen via my perfboard, it ...