Homebuilt CNC

Projects General Guidance
1

I'm building a small CNC, mostly to learn something(It's too small to do any routing), but i hit a wall, i was planning on using grbl for controlling it, but when i tried out the motors, three 28byj-48 stepper motors modded to being bipolar(With this guide Jangeox' blog: Change unipolar 28BYJ-48 to bipolar stepper motor) and an easydriver stepper motor driver board, with grbl the motors would only run one way.

I really hope that someone can help me, because i couldn't find any answer on the internet, and my electronics knowledge doesn't stretch that far.

Thanks

2

WTF is with that link? It takes me to a netflix login page.

You have some mysterious code. You might want to share that.

3

Should be fixed now :slight_smile:

4

Should be fixed now

But not the missing code.

5

In this project i have not used any coding i just loaded the grbl software on the arduino, and connected the wires, downloaded the grbl controller to my computer and tried to control it

A link for the grbl wiki, it should have a lot of information about it

6

TheDanishViking:
the motors would only run one way.

Have you tried using any of the basic stepper demo code?

A clear photo showing how everything is connected is often very helpful in allowing others to spot wiring errors.

7

DuaneDegn:
Have you tried using any of the basic stepper demo code?

I'll try that :slight_smile:

8

This Simple Stepper Code should work with bipolar motors and A4988 drivers.

...R
Stepper Motor Basics

9

Some good info on these motors and driving them here

Russell