Amazon.com: Essenc 3D Printer Filament Detection Module with 1M Cable Run-Out Sensor Material Runout Detector for Ender 3 CR10 3D Printer : Industrial & Scientific
GitHub - pcotret/SpoolBot: How to create a filament counter for a 3D printer for a few bucks
Details zum 3D-Druck von filament-Zahler gadget counter