BTT Smart Filament Sensor Mount for Ender 3

thingiverse

This will not fit all Ender 3! I have an Ender 3 Pro purchased 12/2020 and some other BTT mounts listed here on thingiverse did not work, they were too tall for the extruder. It appears Creality changed a few design specs for more recent Ender models. I found by measuring stl's that the V2 mount from this remix https://www.thingiverse.com/thing:4749302 would work for my Ender 3 Pro, but several changes have to be made to the support parts. The tube guide is cut away on the bottom to clear my Z nut. The spacer for holding the Teflon tube is different. The mount itself though is exactly the same and works well as is. This is for the factory extruder height. All parts require post processing by drilling holes. They are spec'd the right sizes but do not come out that way off the print bed so I re-drilled and cleaned all holes for a super tight fit. The mount required heating just a bit to tap the nut into its place. Everything is really tight and secure. Edit after a few months I have just been using the mount. The rest of the parts and the short tube are not really needed.