3D Printer Filament Load Sensor
Hacker Airtripper selling the idea in a blog post: http://airtripper.com/1338/airtripper-extruder-filament-force-sensor-introduction/
Hacker Airtripper selling the idea in a blog post: http://airtripper.com/1338/airtripper-extruder-filament-force-sensor-introduction/