BTT Smart Filament Sensor witth Repetier V2

plasticman

Hi There,

I'm trying to set up filament blockage detection using a BTT Smart Filament Sensor in Repetier V2. I can only get the filament runout part to work but not the jam part. Here is what I have in configuration_io.h. Is there something else I have to add?

// BTT SFS V2.0 Smart Filament Sensor
// Blue wire (switch/runout) on PG14 = ORIG_E3_DIAG_PIN
IO_INPUT_PULLUP(IOSFSSwitch, ORIG_E3_DIAG_PIN)

// BTT SFS V2.0 Smart Filament Sensor — encoder (green wire) on PG11 (ORIG_E0_DIAG_PIN)
IO_INPUT_PULLUP(IOSFSEncoder, ORIG_E0_DIAG_PIN)

// BTT SFS V2.0 — simple filament runout detector on blue wire (PG14)
FILAMENT_DETECTOR(filamentSensor, IOSFSSwitch, ToolExtruder1)

// BTT SFS V2.0 — must be after E1Motor so E1MotorType is defined
STEPPER_OBSERVEABLE(extruderObserver, E1Motor)
JAM_DETECTOR_HW(jamSensor,
extruderObserver,
IOSFSEncoder,
ToolExtruder1,
5472, // distanceSteps (2.88mm × 1900 steps/mm)
1368, // jitterSteps (25% of distanceSteps)
200) // jamPercentage — tune down after calibration

Thank you

Repetier

Looks good so far, so you should activate debugging gem signals.

M602 S<1/0> P<1/0>- Debug jam control (S) Disable jam control (P). If enabled it will log signal changes and will not trigger jam errors!

You will see them in the console, and when you see it's changing, you see also when it changes. That will help you to define the correct distance steps and jitter steps. And see if the signal is toggling at all in case you are using the wrong input pin or the wiring does not fit like missing jumper on board.