BTT SFS V2.0 Smart Filament Sensor 3d Printing Module for Mastering the Filament State

BIGTREETECH BTT SFS V2.0 Smart Filament Sensor – Advanced Runout, Clog & Motion Detection

The BTT SFS V2.0 is the upgraded version of BIGTREETECH’s intelligent filament monitoring module. It provides next-generation protection by detecting filament runout, breakage, nozzle clogging, filament entanglement, and extruder faults in real time.

Using high-precision photoelectric and motion detection technology, the SFS V2.0 triggers a pause within just 3mm of filament movement issues — faster and more accurate than the V1.0. Real-time status indication helps you quickly identify and resolve problems, preventing wasted filament and failed prints during long or unattended jobs.

Key Features:

• Four major detection functions: runout, clog, entanglement, and extruder malfunction
• Ultra-fast detection distance — issues caught within 3mm (improved from V1.0)
• Real-time LED status indicator for easy monitoring
• Supports both Marlin and Klipper firmware with simple configuration
• Low-friction design for smooth 1.75mm filament feeding
• Compact size for easy installation on most toolheads or filament paths
• Compatible with direct drive and Bowden setups

Files:

https://github.com/bigtreetech/smart-filament-detection-module