The K values (the parameter affecting how much Linear Advance affects the print) we measured
and tested are as follows:
● PLA:
M900 K30
● ABS:
M900 K30
● PET:
M900 K45
● Multi material printer:
M900 K200
for all materials
Pict. 23 - How K value affects the print
These values are preset in our Slic3r PE. The K value is set in custom gcode section in the
Filament Settings tab
,
NOT
under the printer specific custom gcode.
PrusaControl
uses the
same K values but will not allow users editing.
Simplify3D, Cura
, … users just need to add “M900 K??” into the starting gcode script. Keep in
mind you need to manually change that for different filament materials. Only Slic3r PE has
custom gcode for each filament preset and therefore K value is changed automatically.
Set the speed you want, print something (large enough for speed to show up). If sharp corners
have blobs,
increase K value
. If you see missing filament,
decrease the K value
.
Please note that different brands and colors of the same material may require slightly
different K value when printing at extreme speeds, however our presets should be fine
with all of them.
DO NOT turn off filament retract completely.
Tune the K value first, then try slowly
decreasing the retract distance until you see stringing, then increase a touch.
39
Summary of Contents for Original Prusa i3 MK2S 1.75mm
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Page 25: ...Pict 11 Probe response diagram Now you are done 25 ...
Page 61: ...Pict 35 Nozzle change 61 ...
