SharpieTapePlotter

prusaprinters

<figure class="media"><oembed url="https://youtu.be/u050pqYQgjQ"></oembed></figure><p>&nbsp;</p><p>&nbsp;</p><p>2 Nema17 motors<br>8 mm threaded rods, axles and ball bearings&nbsp;<br>3 mm screwings of the motors etc.</p><p>Arduino Nano and CNC Shielt V4<br>A4988 stepper motor driver</p><p>Arduino Micro to control the SG90 Micro Servo</p><p>Software Grbl 1.1&nbsp;<br>Lightburn Software to generate the code<br>(https://lightburnsoftware.com/)</p><p>I have included the firmware setting as a .jpg above.</p><p>How the servo works:</p><p>At the analog input of the micro is the spindle signal (Z+) of the CNC shaft.<br>I use this to raise or lower the pin accordingly.</p><p>With a button and a trimpoti I can set the corresponding response level.</p><p>I have attached the corresponding Arduino code here.</p><p>&nbsp;</p>