This post is about repurposing a commonly available inexpensive optical 3D printer filament sensor/detector module. This session starts with a quick introduction to filament sensors, as it might be ...

Optical lenses are used in multi-purpose printers that can also act as copiers and scanners. The Nikkei said Nippon Sheet Glass makes a lens called a Selfoc Lens Array, which includes a sensor ...

An optical fingerprint sensor, which most notably ships in the ... of a fingerprint and replicating it with a cheap consumer printer is on the more plausible end of these Mission Impossible ...

and advanced Trinamic stepper drivers that could detect when the printer had slipped or gotten stuck. The optical filament sensor of the Prusa i3 MK3. But the most exciting upgrade of all was the ...