Filament sensor housing for dual drive extruder upgrade - LK4 Pro (Ender 3, CR-10)

thingiverse

This part is for attaching the stock filament runout sensor of Longer LK4 Pro to a dual drive extruder upgrade kit. The extruder kit is available here: https://www.banggood.com/Upgraded-Aluminum-Dual-Gear-Pulley-Dual-Drive-Extruder-Kit-For-Creality-CR-10-CR-10S-CR-10S-Pro-Ender-3-Ender-3-Pro-3D-Printer-p-1469345.html?rmmds=myorder&cur_warehouse=CN (note, I am not responsible of the extruder kit) I've included the sldprt file so you can easily modify the part to suit your needs and other printers or sensors but for LK4 this is a direct fit. For installation, you need to remove the spring loaded lever of the extruder to be able to screw the part in. As a finishing touch after printing, I suggest to use a tip of a knife to spin in the screw holes to make screwing the sensor easier. EDIT 12.2.2020 fixed the position of the sensor to better make contact with the filament EDIT 17.2.2020 further perfected the position of the sensor due to ocassional missreadings. EDIT 8.10.2020 Added material to the screw side of the sensor for better sensor adhesion and removed excess material from the other side. Also I suggest to print this part out of PETG or ABS if used in a cabinet due to high temperatures.