Compact Bowden Extruder for Creality Ender-3 and CR-10

cults3d

Customized for Creality Ender-3 and CR-10 Benefits: * adjustable pressure * increased filament dosing accuracy by 44% * reliability Necessary changes in "configuration.h" for Marlin firmware: * "#define DEFAULT_AXIS_STEPS_PER_UNIT { 80, 80, 400, 144 } // default steps for extruder = 144 steps/mm" * "#define INVERT_E0_DIR false" BOM: 1x MK8 hobbed pulley 1x PC4-M6 push in fitting 1x 608zz bearing 1x M5x10mm half-round head screw 3x M3x8mm allen head screws 1x M3x16mm allen head screw 1x M3 nut 2x M3 washers 1x compression spring (ID 3mm) 1x M3 allen head screw with suitable length for the selected spring 1x M3 wing nut Printed from ABS without support and rafts: layer height: 0.16mm perimeter shells: 3 top & bottom layers: 3 infill: 33%