1.75mm filament diameter sensing for 3d printer Prusa etc
3D Filament Width Sensor . The unit works by using an led to throw light in a tunnel where the filament is being pushed. beneath the filament there is a 400 dpi sensor that picks the shadow of the filament and the processor translates it to a working voltage. ie 1.75V = 1.75mm filament.
Unit has been tested before being shipped
Fully Built board with all components and tested unit.
Unit consists of :
1 x 3D printed enclosure at 40 % infill 1 x pcb board Assembled and tested 1 x High brightness led wired to the board. 1 x instruction Manual to hook it up to ramps 1.4.
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