Simple Filament Sensor for Titan Extruders (Tevo Tornado) V2

 

2018-09-22 – V.5 with cable management
added support (6 holes) for cable ties so that the cables don’t just float in the air …

2018-09-15 – V.5
2nd hole, near the extruder was enlarged due to some compatibility issues reported by one user. I personally use V.4, fits like a glove on my extruder/tevo !

2018-09-08 – V.4
I have made some structural adjustments to increase body strength.

This is a simplificated version of this ( https://www.thingiverse.com/thing:3046489 ) filament sensor.

Following parts needed :
1x KW12-3 PCB switch
2x M3 x 20 screws
2x M3 nuts (optional)
If needed you should replace the extruder M3 screws with ones about 1.5-2 mm longer.

Visit dvilleneuve’s page and see wiring video and instructions for the KW12-3 PCB switch.

Marlin mods :

configuration.h
#define FILAMENT_RUNOUT_SENSOR

configuration_adv.h
#if ENABLED(ULTIPANEL)
#define ADVANCED_PAUSE_FEATURE
#define FILAMENT_CHANGE_UNLOAD_LENGTH 0
#define FILAMENT_CHANGE_LOAD_LENGTH 0
#define ADVANCED_PAUSE_EXTRUDE_LENGTH 0

pins_RAPMS.h
//#define Z_MAX_PIN 19
#define FIL_RUNOUT_PIN 19

Youtube tutorial for wiring and Marlin mods : https://www.youtube.com/watch?v=zTRsTWv_IwA

I use this filament sensor together with this filament guide made by by Velo17 : https://www.thingiverse.com/thing:2815524

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