@kuper I think your bed probe is the PCB that the hot end is connected to, which acts as a strain gauge: see https://www.seemecnc.com/products/se300-v1-4-probing-circuit-board
If you are getting inconsistent probe readings, I think you should post on the SeeMeCNC forums and get support from them to help resolve it, as I don't have access to or experience with this hardware. It will effect the delta calibration and bed mesh if it not reporting accurately.
Some general advice with these kinds of probe: make sure the nozzle is bolted down firmly to the PCB, and that all parts of the nozzle are tightened up correctly (see the build guide here https://seemecnc.dozuki.com/Guide/SE300+Build+Guide/94). Make sure the nozzle is clean before probing, ie no bits of filament stuck to the nozzle, or oozing.
Also, your probe settings, from the SeeMeCNC supplied config, are:
M558 P5 I0 A4 R0.4 C"zprobe.in" H20 F2500 T6000 ; HOTEND PROBEset Z probe type to switch and the dive height + speeds G31 P500 X0 Y0 Z-0.35 ; set Z probe trigger value, offset and trigger heightSee M558 for the meaning of the parameters. I think I0 is incorrect; it should be K0, for the probe number. In RRF, incorrect parameters are just ignored, rather than triggering an error.
The A4 parameter means that for each probe point, it tries up to 4 times to get a reading that is within the set sensitivity. In this case, it is using the default of 0.03mm, as there is no S parameter. It could be this that is giving the inconsistent readings. You can do a probing test by running this macro:
Which will give results something like:
M98 P"0:/macros/ProbeTest.g" G32 bed probe heights: 0.045 0.046 0.047 0.047 0.046 0.047 0.048 0.048 0.047 0.047, mean 0.047, deviation from mean 0.001Lastly, no need to take pictures of your screen. You can highlight any text in DWC, then copy and paste it into your reply!
Ian