MaxFlow Test
Test the maximum printing speed of your extrusion system. The model can be scaled in X and Y to fit your buildplate. There is a small notch every 2 mm to indicate a speed change.
Settings in the script for a Layer Height : 0.25
- Nozzle Size : 0.4
- Line Width : 0.4
- Layer Height : 0.25
- Minimum Layer Time : 10 s
- Build Plate Adhesion : Brim
- Print Speed : 100 mm/s
Printing Time = 20 minutes
- Enable brim
- Set the layer height to 0.25 mm
- Set the extrusion width to 0.4 mm
- Set the speed for external perimeters to 100 mm/s (These settings should normaly produce a Flow of 10 mm³/s, which is nice to factorize)
Print the test part. After the print is finished, check the quality of your wall. when they are under-extruded you have reach the maximum Flow Rate.
In the example below you can see that the surface quality starts degrading at level 9.
On this ender 3 machine the first level where we see the under-extrusion is at level 9 -> with a start at 50% this gives a limit flow on this machine at 130% -> 13 mm3/s :
