Compact Bowden Extruder Plus V2

thingiverse

You can choose from three bodies for each mounting style. ## Major Changes from Previous Version - Flexible filament support is now possible. - The idler has been reinforced. - M5 fitting support is available. ## Updates - 2018-12-22: PTFE_Cut_Jig.stl and image have been added. ## Basic Data - Stepper motor: NEMA 17 - Filament diameter: 1.75mm - Drive gear: MK8 drive gear - Pneumatic fitting connector: PC4-M5 or PC4-M6 ## Extruder Body Types - Type A This type can be mounted on a box-type printer. The distance between the two holes of the mount part is 49mm. If the holes position of the mount part does not match the holes position on the printer side, you can use Blender to edit the STL file and move the holes position. - Type B This type can be mounted on a printer with T-slot. - Type C This type can be mounted using a metal bracket or this gimbal. If you replace the motor spacer with a metal bracket, you will need to change the screws (M3x8mm -> M3x10mm, M3x10mm -> M3x12mm) that mounts the stepper motor and extruder. Furthermore, four sets of screws/nuts/washers for mounting on the printer are also required. ## Requirements - Body/Idler - 1 x NEMA 17 Stepper motor - 1 x Heatsink for Nema 17 stepper motor (optional) - If you printed the body with PLA filament, it would be better to attach a heatsink - 1 x MK8 drive gear - Outer diameter: 9mm - Length: 11mm - Hob diameter: 7mm - Bore: 5mm - 1-2 x PC4-M5 or PC4-M6 pneumatic fitting connector - M5 body -> PC4-M5 - M6 body -> PC4-M6 - PTFE tube - 2.0mm screwdriver - Use to return the deformed PTFE tube after cutting - Threadlocker - Use to lock the pneumatic fitting connector or PTFE tube to the body - Copy paper - Use to attach the idler to the body - Soft pick - Use to clean the drive gear automatically - 1 x 625ZZ bearing (or 625-2RS bearing) - 1 x 608ZZ bearing (or 608-2RS bearing) - 1 x Small sponge piece (idea from Marco67) - Put into the motor side rectangle hole on the extruder body (to fix the M3 nut position) - 2 x M3 screws - 2 x M3 hex nuts - 2 x M3 washers - Mount (Type A) - 2 x M3 screws - 2 x M3 hex nuts - 2 x M3 washers - Mount (Type B) - 2 x M3 screws - 2 x M3 t-slot nuts (or hex nuts) - Mount (Type C with metal bracket) - 4 x M3 screws - 4 x M3 hex nuts - 4 x M3 washers ## Print Settings - Body - Nozzle diameter: 0.4mm - Resolution: 0.2mm - Perimeter count: 4 - Infill: 30% or higher - Idler - Resolution: 0.2mm - Perimeter count: 4 - Infill: 80% or higher - Bearing spacer - Resolution: 0.2mm - Motor spacer - Resolution: 0.2mm - Spring compressor - Resolution: 0.2mm - Washer board - Resolution: 0.2mm - PTFE cut jig - Resolution: 0.2mm ## Related Thing - 1.5 Axis Gimbal for NEMA 17