/Adaptation-from-Tircown-s-filament-sensor

Tircown's Filament_motion_sensor tweak

Original design is here: https://github.com/Tircown/VoronFrenchUsers/tree/main/Mod/Filament_motion_sensor And here: https://github.com/elpopo-eng/VoronFrenchUsers/tree/main/Mod/Filament_motion_sensor Please read instructions there.

Configurations

Explanations

  • M1: mounting side 1
  • M2: mounting side 2
  • 1C: 1 tube fitting
  • 2C: 2 tube fitting

Highlighted configurations

  • M1-1C configuration is the closest to the original.
  • M2-2C is the one I use.

Configuration list

M1-1C M1-1C.png M1-2C M1-2C.png M2-1C M2-1C.png M2-2C M2-2C.png

Why?

I wanted:

  • Suppot of PTFE fitting on both sides. Then I designed for 2 sides (2C configuration).
  • Mounting on the other side.

I also made adjustements for:

  • Better sensor enclosing. The first original one I tested didn't work due to too much light passing between the emitter LED and the receptor.
  • Overhangs
  • ...

How it works

A sprocket rotate, driven by the advancing filament. Tooth of the sprocket cut light between a LED emittor and a recptor. The cutting frequency tells the filament sensor if the filament move.

001.jpg 002.jpg

Encasing as to be tight too avoid too much light passing. Else there won't be any signal edge.

003.jpg