Stepper Motor - Use It Cheapest and Easyest

Introduction: Stepper Motor - Use It Cheapest and Easyest

Unknown stepper motor wiring

i found an old stepper motor with unknown wiring

7,5 degrees/step
50 mH

colors of cables are
1. Blue (1)
2. Red
3. Green
4. Blue (2)
5. Black
6. White

so I need to understand what is this and if it works to run it and use.

Step 1: Measure

so we need to find
1. multimeter (Ohm meter)
2. 12 V power supply

now we have 6 wires
we are sure that it is safe to measure ohms between wires
I make a table

1.Blue (1)
2. Green

with multimeter measure Ohm resistance between wires
1 to 2 = 39
1 to 3 = 39
1 to 4 = *
1 to 5 = *
1 to 6 = *
2 to 3 = 78
2 to 4 = *
2 to 5 = *
2 to 6 = *
3 to 4 = *
3 to 5 = *
3 to 6 = *
4 to 5 = 39
4 to 6 = 39
5 to 6 = 78

Step 2: Understand What We Measure

here we understand that
1 and 2 we have 39 Ohm
1 and 3 we have 39 Ohm
2 and 3 we have 78 Ohm

It is easy to decide that

(A+) - 39 - (A) - 39 - (A-)
(B+) - 39 - (B) - 39 - (B-)

Group A
Common: 1
phases: 2 3

Group B
Common: 4
phases: 5 6

Step 3: Test

after this you need to test

Here you need 12 V power supply
! if you use only 12V it is safe for you and for motor

to turn in Clock Wise direction
12V (-) to blue and blue (connect them)

! here you give 12V for 1 second and you will see haw motor turns at 7.5 degrees
after that give to second wire and so on

12V (+) to
Red and

if you need to use it for something you can make
turning switch with 4 contacts

Gr || || Blck
O <---- 12V (+)
Red || || White

connect (||) to Green, Black,Red and White
and 12V (+) to (O)
blue both connect to 12V (-)

The easy way to connect stepper motor and use.

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    3 Discussions


    11 years ago

    Hello, and welcome to the Instructables community! It's great that you've decided to tell the world about something you've made by publishing an Instructable. We just wanted to let you know that your project still needs a little more work if you want it to be well received on Instructables. Projects that don't include certain basic elements tend not to get the attention that they deserve, and so we'd love for you to check out the list below of what makes a successful Instructable. Successful projects on Instructables include: - clearly written details of a finished project with instruction - as many steps as are necessary to explain your project - clear images that you took of your project for most, if not all of your steps - an intro image - proper spelling and grammar - appropriate cautions or safety considerations I'll give you another opportunity to make any final changes to your project before we publish it. Once you're all set to go, please republish your project and send me a quick comment letting me know that you've made some changes. I'll give it a quick final check to make sure you're on the right path, and then remove this note. Thanks for your submission and we hope to see your project published soon!


    Reply 11 years ago on Introduction

    hello thank you for advice i have some difficulties with this instructable 1. my camera is web camera with poor quality and I have no other so i can make better images 2. my mother language is different from English and a have some spelling and grammar errors, but if you or somebody make correction I'll be happy except this i will try to upgrate this project :)


    11 years ago

    This project looks awesome but there isn't enough documentation of you actually making it to be a full Instructable. There are two things which you could do. 1) If you happen to have images of you making your project you can create some more steps, add those additional photos into your Instructable and then republish your Instructable. 2) If you don't have any more pictures of you working on your project, that's ok too. That just means that your project is better suited to be submitted as a slideshow. Your images are already in your library, and you can use the same text that you have already written for your Instructable so it should only take a few minutes to create your slideshow and show the world what you made! Thanks for your submission and let me know if you have any questions along the way.