A kind of motor that moves in steps.

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0answers
19 views

How to Control a 3D Printer Extruder

I am trying to control a 3D Printer Extruder that I got online. I know that for the most part, a person would just plug this in to a circuit board and it would just work. I want to make my own circuit ...
0
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1answer
25 views

Bipolar Stepper Motor Voltage Problem [duplicate]

This is My Circuit: When I Connected Motor X1 and X2 Voltage accross X1 and X2 10mV. When I Connected to X1 and X2 a serial 7K res, Voltage over Resistor 150 mV.(Motor Not Connected) When I ...
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2answers
67 views

Problem with Bipolar Motor Circuit [on hold]

This is my Bipolar Motor Circuit. Dows not work? What is the problem?
1
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2answers
90 views

Controlling a Stepper-Motor with 2 H-bridges

I think that I may have come up with a possible way to control a bipolar stepper motor using 2 simple H-bridges. The idea is to control the direction and the steps of the motor by switching the ...
0
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1answer
44 views

A4988 and battery power

I have battery power (9v) for stepper motor (auto-tracker for telescope mount). I need micro stepping and high torque (0.1 N*m). I decided to use bipolar stepper and A4988 because there are cheap ...
1
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3answers
110 views

1 degree stepper motor

I would like to ask for some help regarding a stepper motor I would like to use. I need 1 deg step and as I have seen there is no such stepper. Could you advise me as an amateur the way i could bring ...
1
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2answers
65 views

Trouble with L297 pins

So I am having trouble with a circuit I am building for a stepper motor controller, I am currently following this schematic My problem is that I don't really know what the Vref, control, sync and ...
0
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1answer
32 views

Wiring and grounding stepper motors

I'm following up on an earlier question I asked concerning a stepper motor failing on a custom made "H" type plotter (Stepper motor failing. Electrical interference?). I now have 18 AWG shielded cable ...
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1answer
46 views

Difference between half stepping and full stepping

I am currently making a stepper motor controller based on this schematic however I was wondering about the difference between half and full stepping and what would be the best method for a stepper ...
1
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2answers
156 views

Peak current limiting motor

I've got a motor driver which can take 3A. But my motor seems to draw more than 3A as peak current when it's been turned on. And I would like to get rid of that since it blew up my motor driver a few ...
1
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1answer
91 views

12V to 1.75V Stepper Motor Power Supply

I am in the planning stages of building a motorized altazimuth telescope/antenna mount. I will be using two large stepper motors that operate at 1.75 Volts / 12.7 Amps. I would like to make the mount ...
0
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2answers
85 views

Can a Raspberry Pi control a servo motor?

Can a Raspberry Pi (RPi) board can control a 10Amp servo motor ? I read on the Internet that a RPi could control small servo motors. If so, is there an add-on board that, when connected to the Pi, ...
0
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1answer
48 views

Stepper Driver/Motor Voltage with Regulated Power Supply (Arduino)

Let me first say I am VERY new to electronics, so I apologize ahead of time (I'm very active on StackOverflow.com, so I understand). I have the following components I'm attempting to control with an ...
0
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1answer
53 views

Stepper Control using DC Brushed Motor Driver

Is there any way to control a bipolar stepper motor using one or more DC brushed motor drivers? My only interface to the motors is setting an integer to represent their speed, ex -100 to 100. I ...
0
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2answers
91 views

Stepper motor failing. Electrical interference?

Update: This question is already so long, I'm hesitant to add to it but it occurs to me to ask if electrical interference between the stepper motor wires could cause this sort of behavior (motor ...
0
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1answer
38 views

Stepper motor limiting current [duplicate]

What is the limiting current for a stepper motor having a resistance per winding of 20.5Ω, an inductance winding of 45mH and an operating voltage of 12V?
1
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3answers
83 views

Is my stepper too small?

I'm building a machine that uses a single stepper motor connected to a gearbox. I'm running it at full steps and I seem to only be able to reach 1000 steps per second with a 200 step/rev motor. Much ...
2
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2answers
354 views

Why use stepper/DC motor driver?

Why use or implement a DC/stepper motor controller? Is it not possible to connect the motor directly to an MCU output pin without the driver?
2
votes
0answers
104 views

Driving multiple stepper motors

During the last days I've been working on driving multiple stepper motors (28BYJ-48 – 5V) with SparkCore and Stepper.h arduino library. I'm trying to drive some stepper motors, but without having to ...
0
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3answers
126 views

Understanding the relationship of Pulse and Stepper RPM

I have a pretty simple script that I'm using to control the RPM of my stepper motor: ...
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1answer
61 views

Need specifications to operate this stepper motor with RPi or Arduino

Here is the disassembled stepper motor that I'm working with: I need to identify this stepper motor that was retrieved from scrap for a project. Budget constraints force us to use the scrap ...
0
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2answers
94 views

Stepper motor stalls at low frequencies. Why?

I picked up a Howard Industries 1-19-4200 (5 wire) stepper and have been driving it on my testbench with a PIC18F2550 and L293D. I recently added a potentiometer to an analog pin of the PIC for speed ...
1
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1answer
57 views

Supply voltage of stepper motors

I'm going to use the following stepper motor drive chip: http://www.st.com/web/en/resource/technical/document/datasheet/CD00255075.pdf And I have choosen the following AC/DC converter: ...
0
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2answers
73 views

L293D Problem- cant run both motors together

I am making rf based metal detecting robo and i had used 8051 for controlling the operation. The rf is fine and programming is also i think okay as i am getting desired outputs at 8051 output pins and ...
3
votes
4answers
188 views

Dialing a miniaturized stargate

I want to build a miniaturized Stargate but I have no clue regarding the electronic part. The Stargate is a fixed circle with 9 chevrons (see links bellow). An inner circle is spinning inside the ...
2
votes
2answers
117 views

Stepper current measurement puzzle

The basic puzzle: how to conveniently view stepper motor current on a scope? Edit 2014-04-14: More-sophisticated schematic and description. I am building a test fixture to examine the behavior and ...
0
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2answers
208 views

Stepper motor causing Arduino brownout?

I'm trying to build what amounts to a single-axis CNC machine running off a 12v automotive type electrical system. Here's a basic description of the build: Arduino Uno Just for testing, I'm using a ...
1
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1answer
269 views

Getting 9V and 400-500mA out of a 24V power supply

I recently bought this power supply to power a microstepping stepper motor controller (which requires an input voltage of 24V). My project requires the ability to dynamically turn on and off an ...
1
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1answer
59 views

Stepper motor drive supply voltage

I am going to use the SM42HT47-1684A stepper motor, its datasheet is following: http://p.globalsources.com/IMAGES/PDT/SPEC/001/K1052328001.pdf In the datasheet the rated voltage of the motor is 2.8 ...
0
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1answer
99 views

Two L298N for two stepper motors

I have two stepper motors (ripped from old scanners) and two L298N ICs. I have to connect these motors to the STM32 MCU, and I'm going to use this scheme: I want to make one board for two motors ...
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4answers
123 views

sn75441 output supply current - heating

I am experiencing excessive heating problem with SN75441one. I know that I can use heat sink but I want to be sure that I am not doing sth wrong. I am using SN75441one to drive a bipolar stepper ...
0
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1answer
65 views

How does the resolution of a stepper motor affect its performance?

I'm looking at purchasing some stepper motors for a project of mine. I found two which seem to be the same, except one has a 1.8 degree step and the other has a 0.9 degree step. Now the application ...
2
votes
1answer
99 views

How do I manipulate a large number of moving platforms?

I might not be in the best place to ask this and feel free to tell me to move my question to another Stack Exchange. I am trying to build a device that will allow me to control at least a couple ...
0
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0answers
47 views

Problem with microstepping mode and A4988POW

I'm trying to use the A4988POW stepper driver in 1/16 micro stepping mode to drive a stepper motor with low stepping frequency (~ 10 steps/s) for tacking an astronomical telescope. However in this ...
3
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1answer
233 views

Stepper motor resolution

What does "mm/step" exactly mean? Where and how is the distance measured? How can it be converted to °/step? I have been looking for this, but I haven't found the exact answer. Here is an example ...
0
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2answers
95 views

stepper motor driver amp

I want to add a few amps to the output of a stepper motor driver (bipolar 4 wire) with out modifying the interns of the driver. MY QUESTION IS BEFORE I START I WANT TO ASK IF THERE IS A PROBLEM WITH ...
0
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1answer
126 views

Unipolar stepper motor and a MCU

I have been trying to steer unipolar stepper motor (5V, 0.7A) using microcontroller powered only by USB (5V or smthing like that). The motor clicking got louder but the motor doesn't move yet. I ...
2
votes
2answers
202 views

Arduino turning a knob left and right with Digital PWM [closed]

I am trying to find a way in order to turn an car amp's bass level knob left and right using an Arduino's digital PWM pin. I am thinking that a stepper motor would be the correct motor to use in order ...
0
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1answer
179 views

a4988 Pololu and Unipolar Stepper Motor

I currently have an Unipolar Stepper Motor with 6 wire and a A4988 Pololu Stepper Driver also Arduino Board, but there are not any guide to connect Unipolar Motor with Driver, Only Bipolar. Someone ...
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1answer
142 views

Is it possible to modify a 5 lead unipolar stepper motor to a bipolar?

I would have a question regarding to 5-lead unipolar steppers, I just found in a scanner a unipolar stepper motor with 5 wires and it has a nice gearing on it, so I would like to modify to a bipolar ...
1
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1answer
43 views

stepper motor losing streps at limited current

I control a stepper motor st6318 1A at 12V with a A4988 because the motor was quiet hot i limited the current to 0.76A what happen now is without any load on the motor i losing steps if i lower the ...
2
votes
1answer
86 views

Stepper Motor Running (too) Smoothly

I acquired two large bipolar stepper motors a couple of years ago. One, I briefly dismantled and then put back together. Now, when I come to use them, the one I took apart doesn't work, and when I ...
1
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1answer
721 views

How to wire external power supply on stepper motor

I followed this tutorial to setup my stepper motor. Now my stepper needs 12V and not 5V. So I was wondering how I can add an external power supply without destroying my pi. I found this: But it ...
2
votes
2answers
288 views

Low cost high precision linear position sensor

I am trying to find a low cost high accuracy linear position sensor that can be used in a hobby 3D printer. Almost all current 3D printer designs rely on stepper motors to provide positioning but I ...
0
votes
2answers
47 views

What is the possible reasons that cause the different motor strokes of two directions

The question may be a little too specific since it refers to some special choice of the motor parts that may not be used for everyone, yet I would like to learn about the general debug methods if ...
0
votes
1answer
150 views

Can i use another H-bridge for this bipolar stepper motor drive?

I am driving a bipolar stepper motor with a H- bridge. For this sheet: source Can i use my L293DNE H-bridge driver instead of the pictured SN754410NE? Will there be any consequences for this? I ...
2
votes
4answers
1k views

Can I drive a low voltage stepper motor with an A4988 driver?

I have this stepper motor with the following specs: Model: 17HS4417 Rated voltage: 2.55V Rated current: 1.7A Phase resistance: 1.5 ohms Phase inductance: 2.8Mh Holding torque (min): 40N-cm. Detent ...
1
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0answers
660 views

L297 + L298 circuit not working

I have paired up L297 and L298 together to make a bipolar stepper driver. My schematics are : I have hooked up the step and direction pin number 4 and 5 respectively on Arduino. I am using a 5V ...
0
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0answers
64 views

Stepper 3 not working

I am trying to get 3 stepper motors to go simotuneosly and one after the other using the AccelLibrary, however my third stepper motor is not moving. Code: ...
0
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2answers
514 views

Stepper Motor rotating but vibrating

So my problem is that I have 3 steppers and using the Accel Library I tried to make them move simutanousley, first of all two steppers move at the same time then a third one continues to rotate, ...