Yes.
At the moment of autotune, the fan has max. At the time of printing, the fan speed is lower.

I do not understand how to configure the M307.
For example, I expose 235C, I get 238C.

Model?

And how to translate M307 parameters in PID parameters for M301?

Conveniently. Calculation the length of the filament?

What are the files in the Filaments Directory?

Port will not burn out?

When printing, does the M671 command count?

No, configuration files are not deleted.

@MSquared:

If I am not mistaken all surfaces in STL files are represented by triangles. Why? Because through the magic of tesselation triangles can make almost any shape fairly well.

https://m.all3dp.com/what-is-stl-file-format-extension-3d-printing/

A slicer reads this triangle data and does its best to create paths using GCODE that are reasonably accurate. GCODE actually has the ability to create “true” arcs (G2/G3) but I’m not aware of any slicers that implement it. The consensus seemed to be “it’s hard and for very little benefit”.

So, does accuracy depend on the STL model?