Hi. Over the past years I have been optimizing my setup to come to the point that I (can) now expect great results from my prints. But with some recent prints I noticed jerky movements and a very rough outside finish. Of course I am always pushing the boundaries, but now I am not sure what the limitation is…
My setup is a 1.5x Kossel with a smoothieboard 5X.
I normally run my prints on a windows PC and pronterface over USB.
Cura 2.1.1 is used for slicing.
A print on which this went wrong is e.g. Thingiverse 'Cute Piggy' (thing 1275429)
print speed here was 40-60mm/s
When I run the same gcode file from the onboard SD card, movement remains smooth throughout the entire print and it comes out clean and detailed.
So my question is; Is the data rate over USB a limitation to feed sufficient gcode to smoothie? And of course if so, how to improve on this while keeping the flexibility to monitor my prints using pronterface (or similar).