YOOPAI Creality Sprite Direct Drive Extruder Pro Kit, All Metal Extruder Upgrade Kit for Ender 3/Ender 3 v2/Ender 3 Pro/Ender 3 Max 3D Printer,Dual Gear Dual Fan Design,Support BL Touch/CR Touch

I fitted this upgrade to my ender 3 pro. The lower carraige wheel on this has a protruding nut and thread which limits X axis travel to the right of the bed, as it now strikes the right hand X axis supporting bracket. As I also use CR touch bed levelling this caused the X axis stepper motor to stall during ths process. They should either reconsider this bolt arrangement or supply a replacement bracket for the X axis. I overcame this by reshaping the X axis supporting bracket, requiring metalworking tools. Fitting the CR touch to this was straightforward and a short cable is provided to attach this to the connecter at the rear of the unit. Whilst convenient, I am worried about the resilience of the large flat cable that connects down to the controller board and only hope it stands the test of time. The heat pipe connections use two of these very thin wires connected in parrallel for each terminal. Links to print files are included for a cable bracket, a modified BL touch fixing and a replacement fan shroud (in case the latter is "damaged in transit"). The unit was well packaged but don't expect to see the flashy CREALITY logo'ed cover depicted in this advert ... if its there its hidden behind the connector board at the rear of the head. What you actually see is depicted in the fourth photo.