Temprature sensor error unknown temperature sensor channel

[A Former User]

i think you might need C"^zprobe.in" added to the line with M558?

M558 P9 C"^zprobe.in" H5 F100 T2000 ; set Z probe type to bltouch and the dive height + speeds

edit: presuming thats where your zprobe is connected?

[JTM]

@bearer said in Temprature sensor error unknown temperature sensor channel:

C"^zprobe.in"

Genius ! thanks mate did the trick now homes all axis ! temp sensor works, extruder works all i need now is to calibrate i think woohoo !! thanks so much to everyone for your help !

[Phaedrux]

@JTM said in Temprature sensor error unknown temperature sensor channel:

M558 M558 P9 H5 F100 T2000 ; set Z probe type to bltouch and the dive height + speeds

Can't believe I didn't catch that!

[JTM]

@Phaedrux you guys are awesome ! appreciate the help as i'm as green as it gets almost ! lol
Ive calibrated my steps so now all axis move the perfect distance, extruder extrudes exactly 100mm when i tell it too, only issue i have is homing Z. I have used the test and calibrate procedure in this link https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe
i have done the calibration several times i manually move the bed up to be catching a width of paper, send M92 Z0 comand to set sero. i then drop the bed down 10mm and send G30 S-1 and i consistently get an av figure of 1.8mm. Now i changed my congig.g code which was G31 X0 Y0 Z0 P25 to G31 X0 Y0 Z1.8 P25 and it still home 14mm high ? am i doing something wrong obviously?

[Phaedrux]

1.8mm trigger height sounds reasonable. 14mm high? Where is that coming from? How are you measuring that? After homing if you jog to z0 the nozzle should be touching the bed.

[JTM]

@Phaedrux i have a E3d super volcano on this machine so i measure from the bottom of the block with a ruler to the bed and it homes 14mm high every time. i can move the nozzle to the bed via the controls sure, but i thought it would home to the required printing height each time if set correctly?

[JTM]

@Phaedrux when i home Z it raises the bed hits the Zprobe then the bed drops 10mm or so?

[droftarts]

@JTM what height does DWC report Z is at after homing Z? If 0, but nozzle is off bed, post your homeall.g and homez.g

Ian

[JTM]

@droftarts its says 0 on the console
homeall :
generated by RepRapFirmware Configuration Tool v3.1.4 on Wed Sep 16 2020 07:34:10 GMT+1000 (Australian Eastern Standard Time)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X-505 Y-455 F3000 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F6000 ; go back a few mm
G1 H1 X-505 Y-455 F600 ; move slowly to X and Y axis endstops once more (second pass)
G90 ; absolute positioning
G1 X15 Y15 F6000 ; go to first bed probe point and home Z
G30 ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

Home z:
; generated by RepRapFirmware Configuration Tool v3.1.4 on Wed Sep 16 2020 07:34:11 GMT+1000 (Australian Eastern Standard Time)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G90 ; absolute positioning
G1 X15 Y15 F6000 ; go to first probe point
G30 ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

[Phaedrux]

@JTM said in Temprature sensor error unknown temperature sensor channel:

i can move the nozzle to the bed via the controls sure, but i thought it would home to the required printing height each time if set correctly?

The print height gets set by the slicer.

The important thing is that after homing you can do a G90 G1 Z0 move and the nozzle touches the bed. If that works, then when you start the print it will go to the right height.

Maybe show a photo of what you mean with the 14mm if you still think something is wrong.

[JTM]

@Phaedrux said in Temprature sensor error unknown temperature sensor channel:

G90 G1 Z0

that did the trick ! so when the print starts it moves to z position 0? i didnt know that. I am trying a print lets see what happens but im finding i have to heat the extruder manually before starting a print. Ill figure it out tommorow

[JTM]

 I have started a print almost completed ! There are a couple of bugs to iron out but this board is amazing! So quite ! I have the wrong nozzle for the print as it was a rush to see it working but almost done! Just printing in reverse ! Lol but I’m sure there is an easy fix for it !
Thanks heaps guys I really appreciate all the help !

[Veti]

you have to wait a bit after the image upload reaches 100% otherwise the image will no be displayed

[JTM]


I’ll try again

[Veti]

@JTM
wait for it to display in the preview window

[JTM]

 I don’t think I can load pictures from my mobile?

[dc42]

@JTM said in Temprature sensor error unknown temperature sensor channel:

 I don’t think I can load pictures from my mobile?

There were problems uploading images to the forum from some versions of Chrome. Is Chrome up to date on your smartphone? Or are you using a different browser?

[JTM]

@dc42 I think so mate, had an update not long ago.

[Phaedrux]

@JTM said in Temprature sensor error unknown temperature sensor channel:

so when the print starts it moves to z position 0?

Well no when the print starts it will move the first layer height set by the slicer. 0.2 or whatever you have it set to.

[JTM]

@Phaedrux yes it does move to the correct height for printing. I worked out why the machine was printing in reverse, embarrased to admit but i had the X and Y motors and end stops back to front ! lol
I have the machine printing but for some reason it doesn't start the heater automatically, i have to heat the extruder then start a print to get t printing. Not sure what this error is :

Error: Temperature reading fault on heater 0: sensor open circuit
Resume state saved
Printing paused at X0.0 Y0.0 Z0.0

I will try my friend google and see what i can come up with, thanks again for all the help guys !