@jay_s_uk Sorry 25A

No I hadnt but have now. When I looked down the list 3.1 was above 2.05 and 3.0 was below and I didnt see it.

Thanks for reply, but have sorted this out. Must have been something in the config.g but no idea what. I found a older saved config.g which has cured the problem.

@jay_s_uk Changed the sensor.
It was the same initially, but its behaving it self now.
When the print finishes will change the wiring connector. It's a 12 way molex. I have spares, so I will cut the wires and re-crimp them. see if that makes any difference. But moving the wires about didnt show any problems, but will change anyhow.

@droftarts Thanks, That sorted it. Although it does seem to exceed 500 normally, I have set it to 490 and it works fine

sorted that out Frederick, the default end stop setting says
active high endstop switch but X1 is low end it needs to be X2

@jay_s_uk
Just to let you know tony I did the heater tuning as you suggested and its now completely flat. (the blip at the end was where the print finished and switched off and I reset the temp for the next print.)
Thank you for your patience.

Found it. I was looking on the dashboard and its on the status.

I understand, and if I turn all the fans off in the tick box I get no fans message, Think I'm getting tired, Will carry on with calibration tomorrow. Thank you for your help. would'nt have got there without it.

@droftarts Thanks, That sorted it. Although it does seem to exceed 500 normally, I have set it to 490 and it works fine

I have a duet 2 board and a dc mini height sensor.
I have not used it in a little while but now I'm getting Height sensor problems when I try to calibtrate it, if I send either G30 S1 or use auto calibration it, although the red light comes on, the carriage doesnt stop and hits the bed and I have to use emergency stop.
My config.g is
M558 P1 C"zprobe.in" H8 F120 T2400
G31 P500 X-0 Y-0 Z2.16;
I do also get z probe display info on the screen. 6 or 7 when far away and 500 when near the bed.
how do I get it working?
My software is
Duet Web Control 3.4.5

@Phaedrux Thanks, thats what I did, But would'nt open in anything.
Have managed to import the step files into inventor and then save those as STL's. Just printing them now. Fingers crossed.
The V1 files also wouldnt open, but there is a link above that worked, but my magnet is 2mm so I think it's V2

I am trying to print this redesigned housing, but I cannot get open the V2 stl files. Have tried simplify3D, cura and mesh maker. I think the source may be corrupted. Does anyone have working versions of them?

Thanks for reply, but have sorted this out. Must have been something in the config.g but no idea what. I found a older saved config.g which has cured the problem.

I have calibrated my mini kossel delta, which has a ir mini sensor.
all is good until I try to do a mesh calibration G29.
it starts ok but at the same point every time I get a message
"G29
Error: Probe already triggered before probing move started"
on watching the probe info it starts out at about 4 or 5 untriggered and 470 to about 520 triggered. When the error occurs it jumps to 900 + for a fraction of a second. It doesnt happen any other time, but it stops the mesh calibration.

@dave-parry No Its back giving the error.
What commands do I need to reduce the sensitivity?
at the moment I have

M591 D0 P3 C"e0_stop" S1 ; filament monitor connected to E0_stop
M591 D0 ; display filament sensor parameters for extruder drive 0

@dave-parry That seems to have cured it. Increased current to 1000mA.
Guess its the slight extra force required to push it through the sensor.

@dave-parry No Its still happening. The motor current is set to 750mA which is the nominal current rating. Should |I increase it slightly?

@dc42 No cant hear any skipping, will try the pressure.