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    [3.5 rc1+] Error while changing filament

    Scheduled Pinned Locked Moved Unsolved
    Beta Firmware
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    • Diamondbackundefined
      Diamondback
      last edited by

      Hey,
      I'm getting a weird error while using the DWC "change filament" functionality:

      Error: M701: Unload the current filament before you attempt to load another one
Error: Push(): stack overflow on HTTP

      I guess the first line is a follow-up to the stack overflow error?
      Any clue what might be happening here? I think this started with the 3.5rc1.

      M122:

      === Diagnostics ===
RepRapFirmware for Duet 3 MB6HC version 3.5.0-rc.1+ (2023-11-01 10:30:38) running on Duet 3 MB6HC v1.02 or later (standalone mode)
Board ID: 08DJM-9P63L-DJ3T0-6J1F4-3S06S-9A1V9
Used output buffers: 3 of 40 (33 max)
=== RTOS ===
Static ram: 154836
Dynamic ram: 132700 of which 20 recycled
Never used RAM 29620, free system stack 136 words
Tasks: NETWORK(1,ready,36.2%,147) ETHERNET(5,nWait,0.3%,117) ACCEL(6,nWait,0.0%,348) HEAT(3,nWait,0.0%,325) Move(4,nWait,0.0%,216) CanReceiv(6,nWait,0.0%,795) CanSender(5,nWait,0.0%,334) CanClock(7,delaying,0.0%,350) TMC(4,nWait,8.3%,59) MAIN(1,running,55.1%,103) IDLE(0,ready,0.0%,30), total 100.0%
Owned mutexes:
=== Platform ===
Last reset 00:24:14 ago, cause: software
Last software reset at 2023-11-12 12:49, reason: User, Gcodes spinning, available RAM 29468, slot 2
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00400000 BFAR 0x00000000 SP 0x00000000 Task MAIN Freestk 0 n/a
Error status: 0x00
MCU temperature: min 40.9, current 42.1, max 42.2
Supply voltage: min 23.5, current 23.8, max 23.9, under voltage events: 0, over voltage events: 0, power good: yes
12V rail voltage: min 12.2, current 12.3, max 12.5, under voltage events: 0
Heap OK, handles allocated/used 495/405, heap memory allocated/used/recyclable 24576/24388/1184, gc cycles 337
Events: 0 queued, 0 completed
Driver 0: standstill, SG min 0, mspos 456, reads 35702, writes 19 timeouts 0
Driver 1: standstill, SG min 0, mspos 360, reads 35703, writes 19 timeouts 0
Driver 2: standstill, SG min 0, mspos 424, reads 35703, writes 19 timeouts 0
Driver 3: standstill, SG min 0, mspos 904, reads 35703, writes 19 timeouts 0
Driver 4: standstill, SG min 0, mspos 520, reads 35699, writes 23 timeouts 0
Driver 5: standstill, SG min 0, mspos 408, reads 35703, writes 19 timeouts 0
Date/time: 2023-11-12 13:13:54
Slowest loop: 13.69ms; fastest: 0.05ms
=== Storage ===
Free file entries: 19
SD card 0 detected, interface speed: 25.0MBytes/sec
SD card longest read time 3.1ms, write time 2.3ms, max retries 0
=== Move ===
DMs created 125, segments created 6, maxWait 1308373ms, bed compensation in use: none, height map offset 0.000, ebfmin 0.00, ebfmax 0.00
no step interrupt scheduled
Moves shaped first try 0, on retry 0, too short 0, wrong shape 0, maybepossible 0
=== DDARing 0 ===
Scheduled moves 28, completed 28, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 1], CDDA state -1
=== DDARing 1 ===
Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamber heaters -1 -1 -1 -1, ordering errs 0
Heater 0 is on, I-accum = 0.0
Heater 1 is on, I-accum = 0.2
=== GCodes ===
Movement locks held by null, null
HTTP is idle in state(s) 0
Telnet is idle in state(s) 0
File is idle in state(s) 0
USB is idle in state(s) 0
Aux is idle in state(s) 0
Trigger is idle in state(s) 0
Queue is idle in state(s) 0
LCD is idle in state(s) 0
SBC is idle in state(s) 0
Daemon is doing "G4 P500" in state(s) 0 0, running macro
Aux2 is idle in state(s) 0
Autopause is idle in state(s) 0
File2 is idle in state(s) 0
Queue2 is idle in state(s) 0
Q0 segments left 0, axes/extruders owned 0x8000000f
Code queue 0 is empty
Q1 segments left 0, axes/extruders owned 0x0000000
Code queue 1 is empty
=== Filament sensors ===
check 0 clear 0
Extruder 0: no data received, errs: frame 0 parity 0 ovrun 0 pol 0 ovdue 0
Extruder 1: no data received, errs: frame 0 parity 0 ovrun 0 pol 0 ovdue 0
Extruder 2: no data received, errs: frame 0 parity 0 ovrun 0 pol 0 ovdue 0
Extruder 3: no data received, errs: frame 0 parity 0 ovrun 0 pol 0 ovdue 0
=== CAN ===
Messages queued 13155, received 29867, lost 0, errs 0, boc 0
Longest wait 1ms for reply type 6042, peak Tx sync delay 10, free buffers 50 (min 49), ts 7274/7273/0
Tx timeouts 0,0,0,0,0,0
=== Network ===
Slowest loop: 40.94ms; fastest: 0.03ms
Responder states: MQTT(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
HTTP sessions: 1 of 8
= Ethernet =
Interface state: active
Error counts: 0 0 0 1 0 0
Socket states: 5 2 2 2 2 0 0 0
=== WiFi ===
Interface state: disabled
Module is disabled
Failed messages: pending 0, notrdy 0, noresp 0
Socket states: 0 0 0 0 0 0 0 0
=== Multicast handler ===
Responder is inactive, messages received 0, responses 0
      chrishammundefined 1 Reply Last reply Reply Quote 0
      • chrishammundefined
        chrishamm administrators @Diamondback
        last edited by

        @Diamondback Please share your filament unload.g/load.g/config.g files and all other macros that they call.

        Duet software engineer

        Diamondbackundefined 2 Replies Last reply Reply Quote 0
        • Diamondbackundefined
          Diamondback @chrishamm
          last edited by Diamondback

          @chrishamm
          Actual filament files: (I've picked one specific filament, there are many more like this)
          load.g

          M98 P"/macros/FilamentConfig/PETG/load"

          unload.g

          M98 P"/macros/FilamentConfig/PETG/unload"

          config.g

          M98 P"/macros/FilamentConfig/PETG/config"

          Filament specific redirection layer: (Each filament type has its own set of macros with the same code but different parameters)

          /macros/FilamentConfig/PETG/load:

          M98 P"/macros/FilamentConfig/Generic/load" T230 S210 R150 F{global.pebbleFeedSpeedDefault}

          /macros/FilamentConfig/PETG/unload:

          M98 P"/macros/FilamentConfig/Generic/unload" T240

          /macros/FilamentConfig/PETG/config:

          M98 P"/macros/FilamentConfig/Generic/config" N"PETG - Generic"

          Generic macros:
          /macros/FilamentConfig/Generic/load:

          set global.toolheadDisplayState = "filamentLoad"
var extrusionTemp = var.T
var extrusionMinTemp = var.S
var retractionMinTemp = var.R
set global.pebbleFeedSpeed = var.F ;apply commanded pebble feed speed

M98 P"/macros/Misc/Lights/On"
M291 P"Heating for purge" R"Filament" S0 T5
M98 P"/macros/Toolchanging/HomeIfNotHomed"
var previousTemp = tools[state.currentTool].active[0]
M568 P{state.currentTool} S{var.extrusionTemp} R0
M116 P{state.currentTool}
M302 S{var.extrusionMinTemp} R{var.retractionMinTemp}         	;Cold extrusion settings

if move.axes[1].userPosition > 0 ;make sure we do not try to move to the purge location without being far away from the dock
    G90
    G1 Y0 F25000
G1 X-70 F25000
G1 Y-220 F25000
M400

M98 P"/macros/Misc/Beep"
M291 P"Ready to feed new filament?" R"Filament Loading" S2

var keepFeeding = true
while var.keepFeeding == true
    G1 E300 F3000
    M400

    M291 S4 P"Filament loaded correctly?" R"Filament Loading" K{"Yes", "No, feed again"}
    if input == 0
        set var.keepFeeding = false

M98 P"/macros/Tool/Purge"
M568 P{state.currentTool} S{var.previousTemp} R0
M116 P{state.currentTool}
M98 P"/macros/Misc/Beep"
set global.toolheadDisplayState = "idle"

set global.deactivateToolAfterFilamentChange = true

          /macros/FilamentConfig/Generic/unload:

          set global.toolheadDisplayState = "filamentUnload"
var releaseTemp = var.T
M98 P"/macros/Misc/Lights/On"
var previousTemp = tools[state.currentTool].active[0]
M568 P{state.currentTool} S{var.releaseTemp} R0
M116 P{state.currentTool}
M98 P"/macros/Misc/Beep"
G91
G1 E-10 F3000
G4 S2
G1 E-30 F10000
M291 P"Ready to pull out filament?" R"Filament" S2
G1 E-500 F5000
G90
M400
M568 P{state.currentTool} S{var.previousTemp} R0
M116 P{state.currentTool}
M98 P"/macros/Misc/Beep"
set global.toolheadDisplayState = "idle"

set global.deactivateToolAfterFilamentChange = true

          /macros/FilamentConfig/Generic/config:

          if state.currentTool < 0
	M99

var pressureAdvance = 0
var retractionDistance = 0.5
var retractionSpeed = 2000
var zHopDistance = 0
var minExtrudeTemp = 180
var pebbleFeedSpeed = global.pebbleFeedSpeedDefault

var name = param.N
var nozzleSize = global.toolNozzleSizes[state.currentTool]

M98 P"/macros/FilamentConfig/Generic/GetFilamentSettingsWithNameAndSize" N{var.name} S{var.nozzleSize}

if global.lastMacroResult == null
	var errMsg = "Can't find filament settings for filament '" ^ var.name ^ "' and " ^ var.nozzleSize ^ "mm nozzle , falling back to defaults!"
	echo {var.errMsg}
	M291 P{var.errMsg} R"Filament Config" S2
else
	set var.pressureAdvance = global.lastMacroResult[0]
	set var.retractionDistance = global.lastMacroResult[1]
	set var.retractionSpeed = global.lastMacroResult[2]
	set var.zHopDistance = global.lastMacroResult[3]
	set var.minExtrudeTemp = global.lastMacroResult[4]
	set var.pebbleFeedSpeed = global.lastMacroResult[5]

var minRetractTemp = var.minExtrudeTemp - 30

echo "Using filament settings: " ^ var.name ^ " with " ^ var.nozzleSize ^ "mm nozzle, Retraction: " ^ var.retractionDistance ^ "mm@" ^ var.retractionSpeed ^ "mm/min, Z-Hop: " ^ var.zHopDistance 
echo "PA: " ^ var.pressureAdvance ^ ", minimum extrusion temperature: " ^ var.minExtrudeTemp ^ ", pebble feed speed: " ^ var.pebbleFeedSpeed

M207 S{var.retractionDistance} F{var.retractionSpeed} Z{var.zHopDistance} 	;retraction settings
M572 D{tools[state.currentTool].extruders[0]} S{var.pressureAdvance} 		;pressure advance settings
M302 S{var.minExtrudeTemp} R{var.minRetractTemp}							;cold extrusion settings
set global.pebbleFeedSpeed = var.pebbleFeedSpeed 							;set pebble feed speed

          In order of appearance...
          /macros/Misc/Lights/On:

          M42 P1 S230

          /macros/Toolchanging/HomeIfNotHomed:

          if !move.axes[0].homed || !move.axes[1].homed || !move.axes[2].homed || !move.axes[3].homed
  echo "Not all axis homed, starting full homing process"
  G28

          /macros/Misc/Beep

          M300 S500 P400

          /macros/Tool/Purge:

          M98 P"/macros/Toolchanging/Wiper/PrimeBrush" R15

G90
M564 S1

          /macros/Toolchanging/Wiper/PrimeBrush:

          var primeRepeats = 4
if exists(var.R)
	set var.primeRepeats = var.R

M98 P"/macros/Toolchanging/Wiper/PrimeBrushPebbleDisk" R{var.primeRepeats}

          /macros/Toolchanging/Wiper/PrimeBrushPebbleDisk:

          if state.currentTool < 0
	echo "Can't Prime & Brush, no tool selected!"
	M99
	
var brushStartPositionX = -80
var brushStartPositionY = -220
var brushEndPositionX = -130
var brushEndPositionY = -220
var pebblePositionX = -151.0
var pebblePositionY = -220.0

var diskStep = 50

var wiperHeightPurgeInitial = 20.6
var wiperHeightPurgeBulk = var.wiperHeightPurgeInitial - 1.5
var wiperHeightRotate = var.wiperHeightPurgeBulk - 2
var wiperHeightIdle = var.wiperHeightPurgeInitial - 5
var wiperHeightBrush = var.wiperHeightPurgeInitial + 0.5

var wiperPurgeAmountPrime = 2
var wiperPurgeAmountInitial = 2
var wiperPurgeAmountBulk = 3

var wiperHeightFeedrate = 3000

if state.currentTool < 0
	echo "Can't Prime & Brush, no tool selected!"
	M99

if heat.heaters[tools[state.currentTool].heaters[0]].current > heat.coldExtrudeTemperature
	M106 S255
	M564 S0
	G90
	G1 W{var.wiperHeightIdle} F{var.wiperHeightFeedrate}
	G1 X{var.brushStartPositionX} Y{var.brushStartPositionY} F25000
	G1 W{var.wiperHeightBrush} F{var.wiperHeightFeedrate}
	G1 X{var.brushEndPositionX} Y{var.brushEndPositionY} F25000
	
	G1 W{var.wiperHeightPurgeBulk} F{var.wiperHeightFeedrate}
	G1 X{var.pebblePositionX} Y{var.pebblePositionY} F25000

	var primeRepeats = 10
	if exists(var.R)
		set var.primeRepeats = var.R
		

	while iterations < var.primeRepeats
		G92 D0
		M83
		M106 S255
		G90		
		G1 W{var.wiperHeightPurgeInitial} F5000
		;G11
		if iterations == 0
			G1 E{var.wiperPurgeAmountPrime} F{global.pebbleFeedSpeed}
		else	
			G0 E1 F3000
		G1 E{var.wiperPurgeAmountInitial} F{global.pebbleFeedSpeed}

		M106 S255
		;G1 W{var.wiperHeightPurgeBulk} F5000
		G1 W{var.wiperHeightPurgeBulk} E{var.wiperPurgeAmountBulk} F{global.pebbleFeedSpeed/7}
		G4 P400
		G0 E-1 F3000
		;G10
		
		G90
		G92 D0
		G1 W{var.wiperHeightRotate} D{var.diskStep} F10000
		G91
		;G1 D{var.diskStep} F20000
		G90

	G90
	M106 S0
	G1 W{var.wiperHeightPurgeBulk} F{var.wiperHeightFeedrate}
	G1 X{var.brushEndPositionX} Y{var.brushEndPositionY} F25000
	G1 W{var.wiperHeightBrush} F{var.wiperHeightFeedrate}	
	G1 X{var.brushStartPositionX} Y{var.brushStartPositionY} F25000

	M564 S1
else
	echo "Skipping Prime & Brush due to unheated tool"

          /macros/FilamentConfig/Generic/GetFilamentSettingsWithNameAndSize:

          set global.lastMacroResult = null
if !exists(param.N) || !exists(param.S)
	M99

var name = param.N
var size = param.S

while iterations < #global.filamentSettings
	if global.filamentSettings[iterations][0] == var.name        
		var nozzleSizeId = -1
		while iterations < #global.nozzleSizeMap
			if global.nozzleSizeMap[iterations] == var.size
				set var.nozzleSizeId = iterations

		if var.nozzleSizeId >= 0
			var settings = global.filamentSettings[iterations][1][var.nozzleSizeId]
			set global.lastMacroResult = var.settings			
			M99
		else
			echo "Can't find nozzle size id for nozzle size: " ^ var.size
			M99

echo "Can't find filament settings for filament: " ^ var.name
          1 Reply Last reply Reply Quote 0
          • Diamondbackundefined Diamondback marked this topic as a question
          • Diamondbackundefined
            Diamondback @chrishamm
            last edited by

            @chrishamm Anything else I can help with?

            chrishammundefined 1 Reply Last reply Reply Quote 0
            • chrishammundefined
              chrishamm administrators @Diamondback
              last edited by

              @Diamondback You certainly call a lot of different macros in there. Stack overflows typically occur if the nesting becomes too deep. Can you please attach a USB terminal to your Duet, run M111 P3 S1, and capture the output you get when you try to change the filament? That should make it easier for us to identify the underlying cause.

              Duet software engineer

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