The Electronics

Now that the Hardware part is finished we can begin with the electronics. It’s really not that hard here’s a drawing how to connect the steppers to the Arduino nano. I used a MB102 Breadboard Power Supply Module as external power supply.




Here’s a list with materials you need to setup the electronic part.

Quantity Item Bought at
2 28YBJ-48 Stepper Motors, 5V + ULN2003 stepper motor driver board Aliexpress – Link
1 Micro 9g 1.6KG Servo SG90 Aliexpress – Link
1 Arduino Nano V3.0 Aliexpress – Link
1 MB102 Breadboard Power Supply Module 3.3V/5V For arduino Solderless Bread Board Aliexpress – Link
1 Jump Wire Cable Male to Male Jumper Wire for Arduino Breadboard Aliexpress – Link
1 Breadboard 830 Point Solderless PCB Bread Board MB-102 MB102 Aliexpress – Link

Before u can use your Arduino u need to solder the pin headers fist.

And here’s  the hardware and the electronics are connected, time to test if everything works.

That was easy! or was it to easy?

The Software, Soon in Part III

Download all Files for this project on github

Do you have any questions? Leave a comment down below!

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  • David

    Hi thank you somuch for making this 🙂

  • David

    When does the Software Part come out?

  • You are welcome 😉

  • The last part will be published tomorrow! have fun!

  • David

    Yesss Thank you 🙂
    Will the code actually be explained?

  • David

    Yess 🙂 Will the Code actually be explained?

  • This Project is based on the μCNC project from D.Herrendoerfer. When you click on the link:

    Download all Files for this project on github

    You will go to the github where he placed the source code. If you have any questions about his code the best thing to do is ask him.

    Furthermore if you want to know more about CNC / 3D printer firmware the best thing to do is use google, there are a lot of pages that cover this subject.

  • See below 😉

  • David

    Ok Thank you 🙂

  • julius parker

    please i need the pdf tutorial on how to assemble the component..

  • I don’t know what you mean with the pdf tutorial? All information is here.
    If you need more information you can have a look at the git link. You will be redirected to the git page of the creator of the cnc machine.