dewi-ny-je
commented
3 years ago Two more videos proving the issue with non-linear speed is real and common, and therefore a continuous correction of the extrusion multiplier (up to a certain max value) would benefit most printers.
Bi-metallic heat break testing on Ender 3 https://youtu.be/xAiUZ7HDhdM
Hemera testing https://youtu.be/RCPDzT3mS4U
I barge in just to provide an idea for future development.
In #2610 a design using a magnetometer is provided which would allow extremely high measurement accuracy (potentially microns of filament motion).
Maybe this filament run-out detection plugin could be sometimes in the future expanded to provide continuous feedback to be used to verify not only the presence of motion, but also the consistency between commanded and effective filament motion, a sort of closed loop feedback for filament motion.