low cost hall based Filament Width Sensor V2

low cost hall based Filament Width Sensor V2

thingiverse

Principle of operation : two ss49e hall sensors work in differential mode, temperature drift same for all sensor. Temperature compensation not needed. Frame on the sensor for the dust filter Used parts two ss49e hall sensors https://aliexpress.ru/wholesale?SearchText=ss49e one 5x2mm magnet https://aliexpress.ru/wholesale?SearchText=5x2%20magnet two bearing roller 4x8 mm (you can use round part of 4 mm drill rod) Spring from automatic pen 15-16 mm long M3 screw and M3 nut Wires Sensors in the body are located opposite sides !!! If you using klipper firmware no additional details needed. Sensor support added https://github.com/KevinOConnor/klipper/issues/2426 For calibration you need have 2 known diameter. I use 1.5mm and 2 mm drill rod for 1.75 mm filament Hall based filament width sensor assembly https://youtu.be/TDO9tME8vp4 klipper setup procedure https://3dua.info/topic/146-datchik-diametra/ For using on marlin you need use additional arduino board from my previous thing https://www.thingiverse.com/thing:3096289

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