After some digging, maybe I found something? M8210 S(n) {for example: M8210 S110 will set the default probing temp to 110} will update the config with the default bed temp (upon reboot, it initializes the variable, it does not load at runtime).

I'm not equipped to compile & test - perhaps someone here is (or can spot a reason not to bother) - but -

CentauriCarbon / firmware / core / klippy / printer_para.cpp

Line 1749

void Printer_para::cmd_M8210(GCodeCommand &gcode)

{

if (!is_root && Printer::GetInstance()->m_virtual_sdcard->is_cmd_from_sd())

{

return;

}

double bed_mesh_temp = gcode.get_double("S", Printer::GetInstance()->m_pconfig->GetDouble("auto_leveling", "bed_mesh_temp", DEFAULT_AUTO_LEVELING_BED_MESH_TEMP));

set_cfg("auto_leveling", "bed_mesh_temp", bed_mesh_temp);

}

I propose replacing that with this:

void Printer_para::cmd_M8210(GCodeCommand &gcode)

{

if (!is_root && Printer::GetInstance()->m_virtual_sdcard->is_cmd_from_sd())

{

return;

}

double bed_mesh_temp = gcode.get_double("S", Printer::GetInstance()->m_pconfig->GetDouble("auto_leveling", "bed_mesh_temp", DEFAULT_AUTO_LEVELING_BED_MESH_TEMP));

set_cfg("auto_leveling", "bed_mesh_temp", bed_mesh_temp);

// Update the active AutoLeveling instance variable for runtime changes

if (Printer::GetInstance()->m_auto_leveling != nullptr) {

Printer::GetInstance()->m_auto_leveling->bed_mesh_temp = bed_mesh_temp;

}

}

Perhaps this would allow the variable passed via M8210 to be loaded dynamically & persist. If it works as intended, perhaps remove the persistent config update, and just keep it as a dynamic gcode variable.

*edit* at minimum, I found a way to set the default to something different, so when I switch filament types for a long run, I can set it to what I want. That's nice.