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Questions tagged [stepper-motor]

A kind of motor that moves in steps.

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2
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2answers
161 views

large voltage spike over shunt resistor even at no load

I'm trying to build a stepper-motor driver. Each windig is driven as shown: at the moment, im feeding this with PWNM signals of constant duty cycle, just to see how everything response. (PWMs are ...
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0answers
88 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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30 views

Minebea steppers 23km-k112-p3v , 23km-k036-p10v

Building a CNC product & got requirement of approx. 8 kg-cm (running) stepper. fortunately we found few "23km-k112-p3v" and "23km-k036-p10v" steppers in box named "10kg Hybrid/Unipolar Steppers" ...
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1answer
49 views

I have a 3D printer and I cant figure out how to digitally reverse the x and y axes [closed]

There are red yellow gray and green wires, in that order.
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3answers
94 views

What stepper motor is this?

I am so sorry, I have to ask such a stupid question. I got these stepper motors from a thrift shop, the owner had no idea what these are. And these have all labels damaged. Can anyone help me ...
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0answers
46 views

What is this stepper motor mount?

I have an old ALPS plotter with, apparently, two dead stepper motors. (1980s new old stock, worked for about half an hour and then the torque gradually dropped off to almost nothing.) Sadly they're ...
0
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1answer
41 views

Circuit design and power management in an Arduino project with stepper motors and solonoids

I am working on a design for a Arduino driven project that controls a 1.7A stepper motor and 2 small solenoid valves. I am using a 12v power supply (Meanwell MDR-60-12) to power the stepper motor (...
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0answers
45 views

Determining/Specing the proper stepper Motor

I am trying to properly spec a proper stepper motor for a project I am working on. I am attempting to provide roughly 3000 pounds of compressive force (about 13300 Newtons) using a p series NEMA 34 ...
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2answers
52 views

how to use sensored BLDC as stepper motor

I am making a huge line following robot and using arduino & sensor BLDC motor salvaged from Segway. The problem is that I am not able to control the motor properly. If the PWM signal is low the ...
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2answers
68 views

What happens if you rotate a stepper motor by hand while it is powered?

There is some resistance to it, but it can be rotated without excessive force. When would this cause damage?
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1answer
38 views

DC motor accuracy with encoder

I am building a coil winding machine and I've already set up something that works. I used two nema17 stepper motors and tb6600 stepper driver cards. The problem is that motors are seems to overheating ...
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0answers
48 views

Can I Use 4 and 8 Wire Stepper Motors On The Same Driver

Short version: My friend's laser machine has a 8-wire bipolar parallel stepper motor, would it be a problem to use a 4-wire stepper motor that almost similar as 8-wire one. Can i unplug 8-wire motor ...
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1answer
44 views

Controlling speed and position of DC Motor

Is it possible perhaps with an Arduino to control the speed and number of revolutions on a brushless DC motor or a worm gear DC motor? I'm asking because I know steppers and servos can do that but ...
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0answers
49 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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0answers
38 views

Calculating the linear travel per step of an actuator

I am using a linear actuator from Portescape. Part # 20DBM-L, 5V series D1B Bipolar. Datasheet Link, with ST SPIN 220 motor driver datasheet link to drive it, in full step mode. From the datasheet of ...
1
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1answer
133 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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0answers
20 views

Coupled interruption control for multiple closed loop steppers

I need some advice to make an interruption control system for my stepper motor drivers. I should probably add that I am rather poorly trained in electronics but eager to learn, so basic explications ...
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0answers
24 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 ...
0
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1answer
34 views

DRV8889: Unexpected voltage drop at output

I'm getting some unexpected behaviors when it comes to the voltage and current I see at the AOUTx and BOUTx pins. I must be missing something from my calculations from the datasheet. Right now, I'm ...
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0answers
26 views

Can I use AC voltage from myRIO to power stepper motor?

I am using easydriver and arduino for a stepper motor provided on this website The motor is 17HS3401S Stepper Motor and I think this is the correct datasheet found on the internet for the same. ...
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0answers
30 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 ...
6
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5answers
967 views

Can I measure torque accurately by an electrical or electronic method?

I am a Btech. student from India. We have been given a project in which we have to design a micro-torsion testing device. We are planning to clamp the specimen and rotate one end by fixed angles ...
0
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1answer
60 views

can use these printer motors to made CNC machine? [closed]

can i use this motor to make a cnc plottor ? is there any way to make a stepper motor using this motor?
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2answers
72 views

Determining motor position with EMI

I would like to determine the position of a motor based on its radio emissions, I do not have access to said motor but I am trying to reverse engineer it. Here is what I know about it : It has X ...
0
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0answers
37 views

TMC2130 stallGuard - SG_Result always 0

I'm working with the TMC2130 and I want to setup the stallGuard. The problem is that SG_Result in register DRV_Status is always 0. It doesn't matter with how much load the motor has to drive or how I ...
0
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3answers
44 views

What is the current limit of driving a linear actuator for 4 VDC at 12 VDC?

Please bear with me, if this is a stupid question. I obtained a linear actuator of a family of linear actuators, here are the specs ...
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0answers
57 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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0answers
40 views

Choosing a stepper for antenna tracking system

I am building a prototype for an antenna tracking system. The following animation will make it slightly easier to understand what I have in mind: https://youtu.be/DZ0LRf6_Zew The two antennas are: ...
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1answer
44 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
77 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 & ...
0
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0answers
35 views

Calculate inductance for ESD protection

I am trying to use TMC2130 for drive a stepper motor that has attached with plastic pulleys assembly. According to data sheet I have to concider about ESD protection due to plastic rotating assembly. (...
0
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1answer
57 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 ...
0
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0answers
56 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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0answers
59 views

How to calculate the rotation of stepper motor for winding a thread on a reel

A machine which can be used to wind the thread of exact length on a reel using two stepper motors, one for rotating the reel(Ymotor) and other one is used for traverse back and forward(Zmotor). So ...
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0answers
120 views

Arduino UNO, L298N Stepper Motor Drive Waveforms

I am driving an unknown stepper motor using a little red L298N board from eBay. The board is sometimes called Qunqi L298N Motor Drive Board Module. I used a 19.5V laptop power supply to power the ...
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1answer
80 views

How this motor can be mounted?

I am a beginner to motors. For one of the projects, I am going to use this stepper motor: https://www.faulhaber.com/en/products/series/am1020/ I am trying to mount this motor to a plate, however, I ...
1
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1answer
112 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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0answers
121 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 ...
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2answers
74 views

How to easily power multiple components with differing requirements?

I'm a long-term software developer who hasn't touched a soldering iron since Uni. I've been mulling an idea for a hardware project for some time, and have cajoled a raspberry pi into managing the ...
1
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1answer
118 views

4 Phase 5 Pin high speed motor driving (turbomolecular pump driver)

I just recently purchased a broken Turbomolecular pump from eBay and repaired it, now that it works again I need to build a low-cost driver for it. It has 4 Phases and normally relies on hall ...
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1answer
44 views

Motor for large speed range

I am designing a chuck for which I need a motor which can go from 200rpm to 5000rpm. I tried a 1000KV BLDC with 12V supply, but the minimum rpm was around 1800. Also, I am not sure whether stepper ...
3
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1answer
157 views

Filtering power to stepper motor drivers for EMI

I have been using Allegro A5977 stepper drivers for a while now (a few years) and I had not too bad of a result meeting the EMI compliance targets even for CLASS B. However I went by the seat of my ...
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1answer
49 views

Driving NEMA17 Stepper motor using leadshine driver

I'm trying to drive a NEMA17 stepper motor using LEADSHINE driver. At the beginning of rotation Motor turns few steps in opposite direction and then turns toward the given direction. Why this is ...
0
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2answers
80 views

How do I work out spec of 24v dc motor?

I have a motor in a vending machine (picture) it only has these numbers on. What I'm hoping to do is turn the motor on and off. However I have no idea what this motor is aside from 24v dc. How do I ...
0
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1answer
55 views

How to implement ion acceleration and deceleration in stepper motor?

Actually, I am using pic microcontroller and software uses for programming is microC. One more thing I use a controller unit (DH542-D)for controlling bipolar stepper motor. I did read several articles ...
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0answers
60 views

stepper motor torque control

I am trying to make a sim racing wheel with force feedback using a closed loop stepper motor. I need to have variable torque applied to the wheel. If i use a transistor with a microcontroller to ...
3
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1answer
76 views

Two identical stepper motors behaving differently at higher (but below their rated) speeds

Note: My question might be short on specifics here when it comes to the motor-parameters, but I have been trying to understand a situation for the last 2~3 Weeks, and I still don't have an ...
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2answers
119 views

What kind of JST connector will fit this stepper motor?

I'm not familiar with JST connectors so please bear with me. According to the datasheet (here) this stepper uses a JST S11B-ZR female connector. 1) I'm confused since based on my understanding, S11B ...
1
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1answer
232 views

Why is low inductance important for stepper motors? [closed]

I’m building a CNC style device and am in the process of choosing the right stepper motors. I read that it’s important to buy steppers with maximally 5mH of inductance. Why exactly is that the case? ...
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3answers
68 views

Driving stepper motor with H-Bridge, how many Volts?

I know that stepper motors are usually driven with current-limiting chopper drivers and hence the applied voltage doesn't really matter (or does it?) and that's why specs of stepper motors don't state ...