In this video, I build a fully functional multi-color 3D printed pen plotter with an automatic pen changer! No manual pen switching needed — the machine picks pens on its own and draws beautiful artwork. <br /><br />🔧 Powered by Arduino, stepper motors, and a smart tool holder mechanism. All parts are 3D printed and open-source. <br /><br />🎨 Features: <br /><br />Multi-color drawing with automatic pen change <br /><br />G-code controlled via GRBL <br /><br />Custom pen holder using servo <br />Compact and fully DIY-friendly design <br /><br />Whether you're into robotics, 3D printing, or just love CNC art — this project is for you! <br /><br />💬 Let me know if you want the STL files, firmware setup, or G-code examples. <br /><br />#DIY #3Dprinted #penplotter, #Arduino #CNC, #autoPenChanger, #GRBL ,#drawing
