grbl is stepper motor controller firmware for three-axis cnc machines, intended to run on Arduinos with a motor driver add-on board. Engineer in Wonderland cnc-related blogs are indexed here It is the ...

Arduino is the ultimate DIY electronics platform and can be tons of fun for the aspiring engineer. If you want to learn the ins-and-outs of Arduino programming, check out this complete starter kit ...

So what’s the trick to running a whopping seventeen individual stepper motors directly from the digital pins of an Arduino Mega?

Step Two: Copy, Paste, and Run the Code in Arduino Open the Arduino software and paste the Arduino code (the text in the box near the bottom of the post) into a new sketch.

It handles three stepper motors, limiting switches, e-stop, and spindle control. The sketch he’s using allows him to stream g-code to the popular prototyping platform, freeing him from needing a ...