@Herve_Smith hi, that's why i'm here and yes, i always refer to firmware if i have to do any tweak (now i know what fw compiling means).
@droftarts i think that's a bit too much for my knowledge, at the moment i'm ready the documentation and working on the support for the z probe. what i've not found is the height offset between the nozzle and the probe, does it exist or is like a bit of trial and error? thanks

@droftarts hi, when i initially brought the 3d printer (probably a year ago) it was set up with a inductive probe but as i said before i wanted not to use it mainly for two reasons: one is because i want the printer with less wiring possible and a neat hotend carriage; and the other one is because i never found clear instruction on the offset from the tip of the hotend to the probe. What i was thinking to do is set a manual hard stop at a determined height, without using the nozzle as a stop. Is it possible? and then adjust always manually the correct offset from the bed. thanks for pointing me in the right direction for what concerne sensorless homing, is it possible to have it running without stallguard? thanks for your reply

Hi guys! I'm rebuilding an old hypercube, after some tweaking in the printed parts now I'm stuck with the firmware configuration. My starting idea was to keep the build as simple as possible, so I want to make the printer sensorless homing on every axis, also z. Is it possible? I'm a complete noob with firmware compiling, where can I start? Thanks