Prusa i3 Dual Direct Extruder E3D hotend

thingiverse

Dual Direct Extruder for Prusa i3 with E3D V5 Hotend. ## Key Features: + Lightweight Design with High X Rigidity Achieved through Bi-Delta Wing Shaped X Carriage Structure. + Symmetric Design Minimizes Bending Momentum Load on X Axis Shaft. + Relaxed YZ Constraint Decouples X Axis Motion from YZ Plane. + Robust Cooling Mount Includes E3D Fan Shroud and Blower Cooling Nozzle. + Locking Lever on Extruder Arm Facilitates Easy Filament Handling. + Easily Accessible Filament Path. + Belt Clamp with Tensioning Capability. ## Bill of Materials (BOM): ### Extruder: + 2 MK7 Extruder Gears + 2 Springs + 2 624ZZ Bearings + 2 NEMA17 Steppers + 2 E3D V5 Hotends ### Cooling: + 5015s Blower Fan, 12V, 52x52x15mm + 2 x 40mmX10mm 12V Fans ### Linear Motion: + 3 LM8UU Linear Bearings + 2 U-Shaped Pins Made from Paper Clip Pin for Top LM8UU Mount ### Fasteners: + Stepper Motor: 6 M3X20 Socket Head, 2 M3X8 Countersunk Flat Head + E3D Clamping: 4 M3X20 or M3X25 + Extruder Spring Tensioner: 2 M3X16 + Extruder Locking Lever: 2 M3X16 + Extruder Bearing: 2 M4X16 + 40mm Fan Mount: 10 M3X16 + 50mm Blower Bottom Mount: 1 M3X25 + Belt Clamp/Tensioner: 4 M3X10 or Longer as Needed + M3 Nuts and Washers as Needed ## Build: ### Complete Build Plate File: dual_direct_extruder_e3d_all_parts.stl All parts have been designed for easy printing with minimum or no support. Fan shroud mounting holes can be tapped for direct mounting without a nut. ### Update: Watch the build video: https://youtu.be/QD0Btv66SBs