AMS Hall Buffer

Working Principle:
A micro switch, responsible for detecting whether the filament is in place and the rewinding retraction anchor point. Two Hall sensors, one responsible for empty filament detection, the other for full filament detection. After extruding a small section of filament, the spring tightens; the spring tightens, stopping the feed. In a continuous loop, the buffer will keep clicking and switching

Application Scenarios:
1. To enable the 3D Printer to determine if it needs to continue feeding filament
2. Reduces the tensile load on the 3D Printer's extruder, improving extrusion efficiency and print quality to some extent

pcb: https://oshwhub.com/eda_utfldqmwf/project_vsbqmzsb