The best design for the CR-10.
I flashed my CR-10 by the Arduino to the newest Marlin. Stock CR-10 (not CR-10S) cant recalibrate steps/s and using the titan extruder is so complicated.
Than it was everything easy. Like in description.
I fix the original spool holder to the lower surface of my table. Its functions well.
Retraction now is only 0,5mm (20mm/s) and the print quality is so amazing.
I had to slow down a print to 50mm/s because he weight of direct extruder is much bigger.