CR-10 Direct Drive

thingiverse

I was fed up with my CR-10S consistently binding on long Bowden tubes while printing with NinjaFlex, and I got tired of dealing with occasional bad prints caused by the tube getting pushed out of the extruder for some unknown reason. The mechanics behind Creality's extruder/Bowden assembly appeared to be poorly designed in my opinion. I decided to design a direct drive system that would lift the extruder stepper above the hot end and limit the Bowden tube to under an inch in length. Although I had already replaced most of my printer's original extruder and hot end parts, I wanted this new setup to reuse as many of the original parts as possible from my Creality CR-10S when I bought it. The resulting system consists of two main components: 1. The main motor plate that is positioned between the existing carriage plate and the hot end, housing the stepper motor and extruder parts while also accommodating a harness for the hot end cables (see photos). 2. A replacement plate for the X-axis limit switch is required due to the added thickness of the direct drive plate, allowing it to make contact with the switch.