01 avril 2016
I just spent lot of time trying to understand why I got horizontal banding on new parts with oboXL3D printer. Initially it looks like this:
After many tests and assumptions like bad threaded rod on Z or not aligned, accuracy of XY, bad filament, bad heater, etc... I finally found the solution, thanks to a post found on a forum.
That post explains that this type of banding may come from the regulation of head bed temperature.
So, I followed the instructions and did this:
1/ uncomment #PIDTEMP Bed in Marlin configuration.h, to activate true PID regulation of the bad, instead of basic regulation (as defined by default)
2/ add correct values Kp,Ki,Kd (as computed automatically by Marlin).
And it gave this, (on the left before tuning, on the right after tuning):
Thanks to those posts: