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Filament Sentinel Technical Support

Filament Sentinel Guide

Basics

General

The Filament Sentinel will detect the presence of your filament.

Each Sentinel will draw 31mA.

FilamentLogicGreen LED
PresentHIGH – 3.3VON
AbsentLOW – 0VOFF

Printer setup

Filament cleaner

The sentinel clean your filament before it gets to your extruder and hotend. The filter should be checked every 1kg to 10kg, depending on your set-up.

Filter maintenance

1Loosen the bottom fitting
Using a 10mm wrench, loosen the bottom fitting.
2Remove the filter
Using a small tweezer, remove the filter from the housing.
3Clean the filter
Remove the debrits and dusts that are stuck inside the filter. If the filter appears damaged, replace it with a new one.
4Install the filter
Using a small tweezer, install the filter back in the housing.
5Tighten the bottom fitting
Using a 10mm wrench, tighten the bottom fitting. Make sure the PTFE tubing does not compress the filter too much.

Wiring

Cable ColorConnection
BlackGround
BlueSignal
Red+5V
  1. Check your board specification for the required pins
  2. Determine your [DIGITAL PIN INPUT] pin number, it will be required for firmware configuration. For example, RAMPS uses D4 (Digital pin number 4) by default.
  3. Connect the wires

Firmware configuration

Legend: Remove Modify Add

Text between [] varies based on your configuration

Configuration.h

//#define FILAMENT_RUNOUT_SENSOR

Configuration_adv.h

//#define FILAMENT_CHANGE_FEATURE

Pins_[BOARD NAME].h

#define FIL_RUNOUT_PIN [DIGITAL PIN INPUT]

Please note!

If the above line isn’t present, simply add it

Configuration.h

#define EXT0_JAM_PIN [DIGITAL PIN INPUT]

#define JAM_METHOD 3

#define JAM_ACTION 1

Work in progress!

Coming soon!

Work in progress!

Coming soon!

Work in progress!

Coming soon!

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