Can't explain effect of layer height on 0.8mm nozzle temperature tower
Hello,
I'm trying to print a temperature tower for my 0.8mm nozzle on Revo 6 in my prusa MK3S+. The temperature towers print attempts below are printing the exact same STL (Except for a change on the size of the temperature labels and I'm also testing slightly different temperature intervals in each case).
On the left side I was using Prusa's default setting for a 0.8mm nozzle wich implies a 0.9mm layer width and 0.4mm layer height. As you can see the result is pretty nasty.
On the right, I changed the layer height to 0.32mm and the results improved spectacularly. They've improved so much, that I'm even having trouble figuring out which is the best temperature, as they all look pretty decent.
I understood that the minimum ratio of width to height was 1.5, so in this case with a 0.9mm, as long as the layer height was below 0.6mm (=0.9/1.5), you would have enough "squish" and the filament extruded would be oval enough to print correctly.
Why is there such a massive difference in results when changing from 0.4mm to 0.32mm layer height?
Another detail of the left side
And of theright side
Many thanks!