How to calculate the Maximum Flow Volume?

Software
1

I’m following this tutorial on calibrating my K1, and I get to the Maximum Flow Volume calibration and I don’t understand how they got their value.
https://wiki.creality.com/en/Software/creality-print/CalibrationTutorial

For example, They used these values:
Initial traffic: 5 mm3 /s
End traffic: 20 mm3 /s
Flow step: 0.5 mm3 /s

Thus the range is (20-5=) 15

The example print is 80mm and the sweet spot is 20mm, so the sweet spot is 25% up the model. To me, this means the MFV = Start Flow Volume + (SweetSpot% * FlowRange) which would equate to:
5 + (25% * 15) = 8.75 mm3 /s

The Wiki shows their value to be 10 mm3 /s.

So which is right?

PS: The default in the filament profile is set to 23 mm3 /s so the figures all look very way off.

2

The only thing I can think of is that the test in the article was with NON-hyper PLA. The way the math works is strictly based on the height of the layer before crappy printing begins. So, @20mm (x0.5) is 10, each layer being 0.5.
I ran this test @ 0.2/step with a ranges 5-10 then 10-15 and if that passed, 15-20 & 20-25 to more accurately gauge the results.
Play with it, I’m going to run it for the 1st time in 9 months because many things on my K1M have changed.
It’s just that model is such a waste of filament!
I’ll post my results, seems like a good way to burn off the last bit of a spool…
Hope it helps!

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