Back on topic tho... I'm running a new bed mesh now with the bed heated up to 60c... I'm sure the temp will be more accurate than before now.

but mesh has no luck, bed is still floating in midair on the mesh for some reason..

Just an update.. I did absolutely no modifications beside the heater stuff yesterday, however today i just did another mesh and there was 1 point that was below 0 and the warning message went away. I started another print and my z babystepping value went from -0.95mm to -0.45mm which is much better than before but still not what I had before which is max -0.25mm.

@veti yes everytime mesh is done it is at printing temp

@veti that will have same result, basically my mesh is like 0.7 mm higher than what its supposed to be, I can use the Z baby stepping in web gui to lower the nozzle to around -0.95 mm and it'll print OK. Before the lowest I have used is like -0.25 mm

Back on topic tho... I'm running a new bed mesh now with the bed heated up to 60c... I'm sure the temp will be more accurate than before now.

but mesh has no luck, bed is still floating in midair on the mesh for some reason..

@veti OH now i feel dumb xD thanks for the tip there, got my bed at 4267 and nozzle at 4092 now

I looked up datasheet for both thermistor and used that instead of the preset since it seem to be incorrect as the EPCOS was only 10k ohm on the rrf.

@veti this may sound stupid but how do i select it in the duet configurator lol... is it the rrf config tool? It just asks me to type in the b value there are no preset selections.

I have found the Semitec b value in the wiki here but Epcos 100k have 3 different model so not sure which one I should be using...
https://reprap.org/wiki/Thermistor

My duet 2 heats the bed first then start the hotend right before the bed reaches temp, haven't had much issue as the hotend heats up way faster than the bed. It can basically catch up in less than a min.

@veti hmm what should I set it to? I have the stock cr10s thermistor for both hotend and bed

EDIT: also i found the bed.g as well here it is:
0_1563938574407_bed.g

I did the Calibrate the Z probe trigger height in the link you provided, also deleted the heightmap file before proceding and im still getting the exact problem.

This is my starting gcode:

M572 D0 S0.2 ;Pressure Advance
M82 ;absolute extrusion mode
G90; Use logical positioning
G92 E0 ;Nulls out the extruder
G28; Homes the nozzle on x,y,z
G28 Z; Homes the z axis again
G30; Home z again with probe
G29 S1; load last bed mesh from memory
G4 S15; waits 15 seconds for the heaters to recover

G1 Z5 ;moves up a bit
G1 X295 Y30 F2700 ;moves over the front right corner.
G1 Z0.3 F100; height of small blob
M106 S255 ;turns fan on full
G1 E20 F200;extrudes a small blob
G4 P4000; Waits 4 seconds to the blob to cool a bit
G1 Z0.5 ;moves up a bit
G4 P5000; Waits 5 seconds to leaker to flow and cool a bit
G1 Z7 F100; Pull out of the blob a bit
G4 P5000 ; used for cooling down the stringing
M106 S0 ;turns fan off
G92 E0 ;Nulls out the extruder
M83 ;relative extrusion mode

I manually do the mesh with the web gui once in a while and the starting gcode just does G29 S1 to load it.