I am becoming crazy solving HE temp problem

claustro

Suddenly my heater going fault. ( temperature rise too slowly)
I changed the thermistor and heating cartridge with an identical model but the problem remains the same.

I connected an extra thermometer to the hot end and what I see is that the temperature, in reality, reaches 260 but the printer thermometer stops around 196 and doesn't go further.

During cold down the external thermometer register, a fasted drop-down of the temperature than the printer thermometer.

Any idea what could be wrong. The problem arised suddenly after a regular switch off the printer

cosmowave

Try to make a PID-Tuning...

droftarts

@claustro Please provide some information. Send M115 and post reply. Post config.g. What thermistor are you using?

Iam

claustro

@droftarts @cosmowave
thank you for answering me. The problem arised suddenly so I don't think a config problem.
The thermistor is semitec 104gt-2 , is the same I always use with this printer
I tried to make a pid tuning but it stops because it can reach the set temperature, maybe I can try to make a pid tuning at 180 instead of at 200 for one time.

FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 2.05.1 ELECTRONICS: Duet WiFi 1.0 or 1.01 FIRMWARE_DATE: 2020-02-09b1

; Communication and general
M111 S0                             	; Debug off
M550 PDBOT                   		    ; Machine name (P + anything you like)
M551 heather9                        	; Machine password (used for FTP connections)
M540 P0xBE:0xEF:0xDE:0xAD:0xFE:0xED  	; MAC Address - If you have more than one Duet on your network, they must all have different MAC addresses, so change the last digits
M552 S1           			            ; Enable WiFi
M555 P2                             	; Set output to look like Marlin
M564 H0


;M575 P1 B57600 S1                  	; Comms parameters for PanelDue; Machine configuration
M569 P0 S1               		        ; Drive 0 
M569 P1 S1              		        ; Drive 1 
M569 P2 S0                 		        ; Drive 2 
M569 P3 S0               		        ; Drive 3 
M569 P4 S1                	          	; Drive 4 
M574 X1 Y2 Z0 S0            	     	; set endstop configuration (X1 is at MIN end. Y2 is at MAX end. (active high switch = S1, active low switch= S0)
M667 S1                    		        ; set CoreXY mode

;M350 X16 Y16 Z16 E16 I1             	; Set 16x microstepping with interpolation
M92 X100 Y100 Z1000          		    ; Set axis steps/mm. Check that the printer really move as much as you tell it. Not more and not less.

M92 E422:422    		                ; Set extruder steps/mm. Change this to match your extruder.  
M906 X1200 Y1200 Z1300 E800            	; Set motor currents (mA). Increase if motor is to weak. Lower if motor gets too hot. 800-1000 is good for most.

M201 X1500 Y1500 Z400 E4000         	; Accelerations (mm/s^2). The acceleration, speed and jerk is a setting you can alter to try making the printer to print as nice as possible.. 
M203 X15000 Y15000 Z300 E1500       	; Maximum speeds (mm/min)
M566 X600 Y600 Z24 E1200             	; Maximum jerk speeds mm/minute
M208 S0 X334 Y290 Z300            		; set axis maxima (adjust to suit your machine)
M208 S1 X0 Y0 Z0                    	; set axis minima (adjust to make X=0 and Y=0 the edges of the bed)
G21                                 	; Work in millimetres
G90                                 	; Send absolute coordinates...
M83                                 	; ...but relative extruder moves; Z probe
M404 N1.75                              ;spessore fialmento per cprint monitor



;*** You can use S and B parameters to define the parameters of the thermistors you are using. Standard 100k thermistor from E3d is 4388 or 4725.
M305 P0 T100000 B4388 R4700 H0 L0   	; Put your own H and/or L values here to set the bed thermistor ADC correction
M305 P1 T100000 B4267 R4700 H0 L0   	; Put your own H and/or L values here to set the first nozzle thermistor ADC correction

;***Use for autotune. 
M307 H0 A142 C293.5 D5.4 B0 		   ;Autotune result for bed
M307 H1 A588.5 C242.9 D6.7 B0		    ;Autotuen result for first nozzle; Fans
M106 P1 T45 H1			            	; enable thermostatic mode for fan 1 at temp 45 degrees. Fan turns on when P1(extruder 1) is above 45 degrees.; Tool definition
M563 P0 D0 H1                       	; Define tool 0
G10 P0 S0 R0                        	; Set tool 0 operating and standby temperatures
T0                                  	; select first hot end

;*** Fan config
M106 P1 T45 H1
M106 P2 H-1

;*** BLTouch
M307 H3 A-1 C-1 D-1
;M307 H7 A-1 C-1 D-1
M558 P9 H10 R0.2 F100 T7000 A5 B0
M574 E0 S0	
G31 P25 X-31 Y19 Z0.950   ;  OFFSET Z !!!!!!!!!!!!!!!! Numeri più alti avvicnano al piatto
M376 H15 ; fade compensation limite 15mm
M557 X24:324 Y0:290 S40
M375					         		; Load heightmap.csv


; Manual Bed leveling assistant prerequisite  DA CONTROLLARE
M671 X3.0:321.0:160.0 Y245.70:250.7:-30.0 P0.5  ; in ordine prima tutte le X poi le Y P sta per il passo delle viti M4=0.7 M5=0.5


;*** Autupause
M911 S23 R23 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" 	; Configure automatic saving on power loss
M501					                            ; Load Config-Override.g that is created using M500


;*** Filament sensor
M591 D0 P3 C3 S1 R50:150 L25.5 E3.0 ; prova messa da nuova mm   TOGLIERE ; PER RIATTIVARE
;M591 D0 P3 S23.2 C3 R70:130 E5.0  ; Duet3d sensor for extruder drive 0 is connected to endstop input 3 (E0), 23.5mm/rev, 50%  error detection tolerance, 3mm comparison length
;M591 D0                       ; display filament sensor parameters for extruder drive 0 mm
;D = extruder drive number
;P = filament sensor type. P3 = Duet3D filament monitor without additional filament presence detection switch, P4 = Duet3D filament monitor with switch.
;Snnn = mm of filament fed per complete rotation of the sensor wheel. May be positive or negative.
;C = endstop number (0 = X, 1 = Y, 2 = Z, 3 = E0 etc.). Endstop inputs 5-9 which are on the DueX2 or DueX5 expansion boards cannot be used. Endstop inputs 10-11 on the CONN_LCD connector can be used.
;R = relative tolerance in %, default 20%
;E = minimum extrusion length before a commanded/measured comparison is done, default 3mm

/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*
END OF CONFIG.G
/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*

droftarts

@claustro said in I am becoming crazy solving HE temp problem:

Any reason you're using:
M305 P1 T100000 B4267 R4700 H0 L0

When a 104gt-2 is usually defined as:
M305 P1 T100000 B4725 C7.060000e-8 R4700 ?

Ian

claustro

@droftarts

This is the string suggested the seller where I bought the thermistor.
I can try to change it .

dc42

@claustro, does the temperature read correctly when the hot end is cold, i.e. room temperature?

claustro

@dc42
Yes it is correct.
This problem occurred before. I dismantle the HE changed thermistor and cartridge many times and without a clear reason ti starts working again correctly , till yesterday

droftarts

@claustro You could try autotuning the thermistor ADCs: https://duet3d.dozuki.com/Wiki/Calibrating_thermistor_and_PT1000_readings
You'll have to use the 'Manual calibration' on Duet 2 WiFi.

Ian

claustro

I made a pid tuning at 190 degree instead of 240.
changhed the m305 as suggested.
Seems ok for now , let's see.
Thank you all