Test for VFA in all directions at speeds from 40mm/s to 190mm/s. At every notch (5mm apart) the print speed increases by 10mm/s.

The gcode is a ready to go file for PLA for your MK4S; the 3MF is the PrusaSlicer project, not just the geometry (use “Open” in PrusaSlicer, not “Import”)

I'm uploading this as PrusaSlicer currently does not have the functionality to automatically create such tests. This one is based off the one found in OrcaSlicer.

The profile is for a MK4S (no MMU) with a 0.4mm highflow nozzle. It's sliced for PLA at 0.20mm layer height in vase mode.

Included is the PrusaSlicer project (3MF) if you wish to look more closely at it, or slice for different settings. The external perimeter speed is set to 100mm/s, then speed is controlled through custom gcode commands. For example, after the first layer we use M220 S40 to set the speed to 40%, which is 40mm/s.