DIY filament runout sensor

thingiverse

DIY Filament Runout Sensor for OctoPrint. A Simple and Inexpensive Solution to Detecting Empty Filament Spools. The Problem with Current Solutions: Many filament runout sensors on the market are expensive, complex, or difficult to install. They often require a lot of time and effort to set up and may not be compatible with all 3D printers. A Better Approach: This DIY sensor uses a simple microswitch that can detect when the filament has reached its end. It's easy to install and requires minimal setup. The Microswitch Used: The Zippy Technology 50g Microswitch - Light Touch is used in this project. It's available at MicroCenter for around $10. How it Works: 1. Mount the microswitch near the filament spool. 2. Connect the switch to your OctoPrint setup using a breadboard and some jumper wires. 3. When the filament reaches its end, the switch will trigger and send a signal to your 3D printer. Benefits: * Easy to install * Inexpensive * Compatible with most 3D printers * Simple to set up Conclusion: This DIY filament runout sensor is a cost-effective solution for detecting empty filament spools. It's easy to install and requires minimal setup, making it perfect for hobbyists and professionals alike.