FILAMENT_RUNOUT_DISTANCE_MM or similar at reprap?

OwenD

Just confirming that this is now possible with 3.4.0b7
Albeit you must be aware that the macro called is now filament_error.g, not filament-error.g
i.e. must have an underscore "_" and not a hyphen "-"
There is also a problem if filament_error.g contains an M291 as described here

filament_error.g

;0:/sys/filament_error.g
;run when a filament sensor error is detected.  Print will be paused bt Daemon.g after runout distance.
var runoutDistance = 350 ; this is just so you can change easily 
; first check that we are not currently in an error state and the switch has been toggled again.
if (global.filamentDistance !=0) || !(state.status = "processing")
	echo "Filament sensor triggered, but already no print in progress.  No action taken"
	M99 ; exit macro
echo "filament_error.g run"

G4 P10 ; delay 10ms to debounce
if sensors.filamentMonitors[0].status="ok"
	echo "switch bounce detected - error cancelled"
	M99 ; break out if sensor value is zero again (bouncing)
echo {"Filament error type " ^ param.P ^ " detected on extruder " ^ param.D}
;M291 R"Filament Error" P{"Filament error type " ^ param.P ^ " detected on extruder " ^ param.D} S1 T3

var thisExtruderValue = move.extruders[tools[state.currentTool].filamentExtruder].position
set global.filamentDistance = var.thisExtruderValue + var.runoutDistance
echo "filament_error.g run - print will be paused after " ^ var.runoutDistance ^ "mm"

In daemon.g
(Note this is run in a while loop so it's called at intervals less than 10 seconds)

while true
	; I have a bunch of other stuff in here
	;check the filament runout
	if state.currentTool != -1
		if (move.extruders[tools[state.currentTool].filamentExtruder].position > global.filamentDistance)  &&  (global.filamentDistance !=0) && (state.status = "processing")
			echo "paused called from daemon - filament runout"	
			M25 ; pause print if filament has run out
	G4 S2 ; add a delay for these checks

In resume.g we reset the distance

if sensors.filamentMonitors[0].status="ok"
	set global.filamentDistance = 0 ; reset filament sensor extrusion distance
;do all the other stuff needed for resuming

You also need to set the distance to zero in start.g

if sensors.filamentMonitors[0].status="ok"
	set global.filamentDistance = 0 ; reset filament sensor extrusion distance 
else
	abort "Filament sensor shows no filament loaded.  Print aborted"

and of course define the global in config.g

if !exists(global.filamentDistance)
	global filamentDistance = 0 ; global for use to allow filament to feed for set distance after sensor trips 
else
	set global.filamentDistance = 0

apak

thanks, will try

apak

This post is deleted!

MrTwinkys

@apak any word on whether or not this is functioning correctly? I would like to set this up for a reverse Bowden setup also.