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

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 ...

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.

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 ...