Thanks a lot for your fast reply! Couldn't test before today. With your help it is working now. Reinstalling firmware to WiFi module has solved the problem!
Thanks a lot!

Best regards
Holger

After upgrading Duet Wifi to V3.0 by installing Duet2and3Firmware-3.0.zip I cannot connet to a WiFi network. I also generated a basic config-file with the config tool incl. Wifi-Setup. But it does not work.
Do you have any hints for me?

Best regards
Holger

Hi,

thanks for your replies. Yes - the cost or a sensor is not high but it is mounted between cork and the 230V heat plate. So I will first replace the cable as far as possible and hope that this will help

Best regards
Holger

Hi,

since some days I recognize strange drops in the temperature curve of my heat bed. .
What do you think: Is the cable of temperature sensor broken, is the temperature sensor itself broken or is this something else?

Best regards
Holger

It is red to brown with black printing

No - there is a printing on it, but I checked already whether there is a difference or not - it does not matter. The lack of accuracy is all over the area

No because there is written:

works as-is if placed directly on a PCB bed heater or other surface that does not reflect strongly.

and it ist directly placed on a PCB bed heater…

In the meantime I fear that is related to the fact, that the sensor do not give reproducable results for my glass bed :(.

What I have done to come to this conclusion: With help of a piece of paper I measured manually 9 points in a 200 x 200 mm square. Afterwards I defined the same square and the 3x3 matrix with M557. The result was frightening: Even for the point where homing was made before a height of 0.3 mm is measured and the other results do not really fit to my manual measured results.

So - do you think I would get better results wit the new BL touch? I read something about an ultrasonic sensor but didn't see any sensor like this. Any other suggestions?

Best regards
Holger

No - content of config-override.g is below - but shouldn't in that case not also the trigger position after homing different? That changes after G32

Best regards
Holger

Hi,

I have a strange effect with bed compensation

I am using the IR probe (V2). To get the correct trigger height I used the method describred https://www.duet3d.com/wiki/Using_mesh_bed_compensation with a manually calibrated bed and got 2.07mm for the trigger height.

So I setup config.g:

[[language]]
; ## ALLGEMEINES
M550 PYellow Monster	; Name des Printers
M552 S1                 ; Verbindung mit WiFi aufbauen

; ## BEWEGUNG
; M569 P0
M569 P1 S0			; X: Drive 1 vorwärts
M569 P2 S1			; Y: Drive 2 rückwärts
;M569 P3
;M569 P4
M569 P5 S1			; Z: Drive 5 rückwärts
M569 P6 S1			; Z: Drive 6 rückwärts
M584 X1 Y2 Z5:6 E0:3:4		; Stepper zuordnen
M350 X16 Y16 Z16:16 E16:16:16 I1 	; 16x Mikrostepping
M574 
M906 X1200			; X-Achse: 1200mA
M906 Y2000			; Y-Achse: 2000mA in Reihe
M906 Z1500:1500			; Z-Achse: 1500mA je Motor
M906 E1800:1800:1800		; Extruder: 1700mA je Motor
M203 X12000 Y12000		; Geschwindigkeit der Achsen in mm/min
M566 X600 Y600 Z30 E20		; Maximae Gewschwindigkeitsänderung
M208 X300 Y300 Z300		; Maximale Achsenlage
M208 X-11 Y-9 S1		; Definition 0 Position
M92 X100 Y100 Z800 E100.5:100.5:100.5		; Kalibrierung der Achsen
M572 D0 S0.13			; Bowden Kompensation
M572 D1 S0.13			; Bowden Kompensation
M572 D2 S0.13			; Bowden Kompensation
G21				; Angaben in Millimeter
G90                             ; Verwendung absoluter Koordinaten
M83 				; Für Extruder relative Koordinaten

; ## Z-PROBE / HOME
M671 X-8.9:38.9 Y150:150	; Achsenposition für Ausgleich 
M558 P1				; Z Probe Type
G31 P500 Y-39 Z2.07		; Triggerpunkt definieren

; ## TEMPERATUR
M305 P0 R4700 T100000 B3950	; Bett Temperatur Messung
M305 P1 R4700 T100000 B3950	; Hotend Temperatur Messung

; ## TOOLS
M563 P0 D0 H1			; Tool 0: Extruder 1
G10 P0 R0 S0 X0 Y0		; Tool 0: Offset und Temperaturen 0
M563 P1 D1 H1			; Tool 1: Extruder 2
G10 P1 R0 S0 X0 Y0		; Tool 1: Offset und Temperaturen 0
M563 P2 D2 H1			; Tool 2: Extruder 3
G10 P2 R0 S0 X0 Y0		; Tool 2: Offset und Temperaturen 0
M563 P3 D0:1:2 H1		; Tool 3: MIXER
G10 P2 R0 S0 X0 Y0		; Tool 3: Offset und Temperaturen 0
M567 P3 E0.34:0.33:0.33		; Tool 3: Standardmixer

; ## LOAD OVERRIDES
M501

and bed.g

[[language]]
; ## MESH BED LEVELLING
M208 Y340			; Temporäre Erhöhung maximale Achsenlage
M557 X20:280 Y20:280 S260	; 4 Punkt Messung zum Auto Bed Levelling
G29 S0				; Auto Bed Leveling durchführen und aktivieren
M208 Y300			; Temporäre Erhöhung maximale Achsenlage

After running G32 the trigger height changes automatically to 3.57 mm even (glass) bed is levelled quite good. What is me surprising to: When the Level map is displayed all 4 Z-points are around -0.7 instead of 0. So - you have an idea where I made the error?

Best regards
Holger