A kind of motor that moves in steps.

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2
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4answers
120 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
68 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
votes
2answers
81 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
vote
1answer
133 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
vote
1answer
41 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
votes
1answer
43 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 ...
0
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4answers
66 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
votes
1answer
61 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
73 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
votes
0answers
28 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
votes
1answer
217 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
votes
2answers
65 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
votes
1answer
105 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
141 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
votes
1answer
87 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 ...
-1
votes
1answer
89 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
vote
1answer
33 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
75 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 ...
0
votes
1answer
335 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
128 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
40 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
84 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
351 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
vote
0answers
406 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
votes
0answers
52 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
votes
2answers
239 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, ...
0
votes
1answer
326 views

Alternative to easy-driver (or adafruit motor shield ) on breadboard [duplicate]

I'm up to implementing bipolar stepper drivers with STEP and DIRECTION inputs just as like easydriver and pololu stepper drivers but that on breadboard.Earlier I was using L293D to do that , but it ...
1
vote
2answers
122 views

Using a function within a function

Hi I am a novice at using stepper motors, and I am learning as I go on. However, I was wondering if there was a way to delay the steps between each step in my stepper motor without using the delay, ...
0
votes
0answers
59 views

Two wire circuit of H-bridge as Bipolar stepper driver for CNCs and 3D printer and stepper motor vibration and noise issue [duplicate]

So after searching a lot and looking up every Jack and Jill's website for 3/4 axis cheapest DIY stepper driver for the 3d printer and CNC. I have come to the conclusion that using L293d with ...
1
vote
1answer
383 views

G-code compatiblity with H-bridge L293d

I'm trying to make a 3 axis bipolar stepper driver and I think using L293Ds and Arduino is the best cheapest option. I have seen people using grbl to run their steppers easily but with grbl they ...
0
votes
1answer
95 views

Unused slots in the stepper Motor

The motor I am talking about has six wire slots of which two are unused and wires coming from the motor are restricted to four (4 to 4 jumper connecting wires are there to connect the motor ).So why ...
0
votes
0answers
35 views

Why do we use variable reluctance steppers?

AFAIK, variable reluctance steppers have non-magnetic soft iron teeth and they align themselves so as to have minimum gap I don't understand what does this line mean? How does it align itself with ...
1
vote
2answers
130 views

Why do I need PWMs on Arduino but not on ATMega16 or PIC16 to drive the stepper motors with L293d?

Seems to me , I'm lacking some concepts here. From what I know is that PWMs pins are essential for driving the motors (as they can drive the motors at different speed with diferent duty cycle). So ...
1
vote
2answers
189 views

How do I know whether a circuit (originally for 5 wire) will work for four wire stepper motor?

There is a very old and popular instructable 3 axis stepper motor driver, http://www.instructables.com/id/Easy-to-build-CNC-Mill-Stepper-Motor-and-Driver-ci/ As clear from the image , it's a six ...
2
votes
1answer
109 views

Is there a way to get more PWMs from Arduino Board?

I want to control 4 steppers with Arduino UNO and I'm all short of PWMs.In every tutorial over the web they have used PWM pin , in that case I can at-most use only two steppers with Arduino.So why it ...
0
votes
0answers
49 views

Which would be the best option for driving the 3/4 axis stepper motor for 3D printers?

I have researched a bit over google and reprep websites and come across different circuits/methods to drive the stepper motors. Being a student only , I have budget issues and I want it to be less ...
4
votes
2answers
312 views

Debugging my bipolar stepper motor design

I'm trying to connect a NEMA 17 Bipolar Stepper Motor to an Arduino Uno using an L298N Stepper Motor Controller Module and control its speed using a 10K potentiometer. I haven't found any examples ...
0
votes
0answers
84 views

Determining the number of steps in a stepper motor

I'm trying to control a NEMA 17 Stepper motor with an arduino. I'm reading this data sheet (Model # 17HS4417) which asserts that the step angle is 1.8 degrees. When coding in arduino, I need to ...
1
vote
0answers
65 views

Alternative option for RAMPS Arduino for 3d printer?

there going through the reprep site , it can be said that using RAMPS or solinguo board i can make my 3d printer run but the problem is that they are very costly , moreover I want have a learning ...
0
votes
0answers
86 views

Breadboarding a 3 axis stepper motor control and controlling with Arduino

I want to create a 3 axis stepper motor controller for a 3D printer. Since I'm only a novice I would like to develop the circuits on breadboard or a normal PCB (unlike those green PCBs). What I would ...
0
votes
1answer
92 views

Which Battery pack use for Arduino TimeLapse dolly [closed]

I'm trying to create a small TimeLapse Dolly during my spare time. I'm planning to take away the dolly to film nature outside but I'm not sure which battery pack should I use. I would like to ...
-1
votes
1answer
76 views

Need +9V power supply for breadboard (3x Stepper motors). Tried Arduino wall wart [duplicate]

I need to supply +9V to three stepper motors on a breadboard with driver carriers (see parts below). Its too much for my raspberry pi to handle, apparently. I was able to power and control a single ...
1
vote
1answer
151 views

Is it possible to control a 4 wire Bipolar stepper motor with a PWM signal?

I am trying to control a 4 wire bipolar stepper with a PWM signal being output from a VEX cortex controller. I am planning on using 4 bipolar NEMA 17 12v steppers to drive a small remote controlled ...
2
votes
3answers
217 views

What is the difference between stepper motors and servomotors?

I am not sure I understand what the difference between a stepper motor and a servomotor is. Could someone explain this to me? Also how do these motors behave when they are paused or turned off, do ...
0
votes
2answers
119 views

ATmega168 circuit not working without Arduino regulator?

I am having this very strange issue with my stepper motor driver circuit which uses an Atmega168 an L293 h bridge that appears to not want to function without an Arduino (Uno) connected to 3V3 and ...
0
votes
0answers
134 views

AVR High resolution 4 pin synchronised PWM

I am trying to develop a micro stepping stepper motor driver with an ATTiny45 and a L293 H bridge and am currently prototyping the algorithms using an ATMega168 and the L293. For good quality micro ...
2
votes
3answers
195 views

Using an OEM power supply

I am trying to use an 12V OEM type power supply to supply 12V to stepper motors through an L293 h bridge in an Arduino powered circuit but my current setup starts burning all the negative wires and ...
0
votes
2answers
136 views

Does Arduino SPI use up a timer

I plan on using a barebones Atmega168 running an Arduino sketch to drive two stepper motors and a heater. To interface with the steppers and heater I want to use 4 PWM pins. I will also have an SPI ...
0
votes
1answer
95 views

AVR Timer for PWM and interrupt?

I am developing a system that needs to drive 4 stepper motors through 4 dual H-bridges, for each phase of movement the AVR will receive SPI messages stating how many steps each motor should do and ...
0
votes
1answer
90 views

NEMA 17 stepper motor [closed]

I'm going to use 4 NEMA 17 stepper motors to build a quadcopter. I need to find the maximum upthrust that a single motor can give with a propeller of length 6cm (end to end). The holding torque of the ...