11 replies

What is proper method to tell RatOS/Klipper about a nozzle diameter size change?

I normally use a CHT 0.6mm nozzle and rarely use a CHT 0.4mm nozzle on my RatRig V3.1.
RatOS V2 Setup asked me the Nozzle Diameter (0.4/0.6...) and Nozzle type (CHT/Regular) and setup the printer.cfg file. I see "variable_has_cht_nozzle: True" under [gcode_macro T0] in printer.cfg. I do not see where the Nozzle Diameter is recorded as it is not in my printer.cfg file. Klipper must know the correct diameter because is mentioned at the bottom of Dashboard/Extruder panel.

I am changing from the 0.6mm nozzle to the 0.4mm nozzle. I have previously ignored changing the RatOS/Klipper diameter and it has never been an issue.
I have the following questions:
Does it matter if I leave the wrong setting in RatOS/Klipper as long as I make the appropriate change in the SuperSlicer?
Where is the nozzle diameter recorded as a result of setting it in the RatOS Setup?
Where should I make the diameter change? printer.cfg or somewhere else?
I would appreciate any insights into this process.