Syringe extruder for 3Drag printer

Main Author: Andrea Mantelli
Format: info Journal
Bahasa: eng
Terbitan: , 2020
Subjects:
Online Access: https://zenodo.org/record/4295839
Daftar Isi:
  • 3Drag 3D printer syringe extruder has been designed at +LAB. Previous versions of the extruder are available at Thingiverse: version 1, version 2 LDM (liquid Deposition Modeling) is a particular 3D printer process in which a viscous fluid is extruded from a reservoir and deposited on the build plate. This process is more generally called Direct Ink Writing (DIW). The third version of the LDM extruder was developed with the purpose of making a modular extruder, easy to assemble and disassemble: The syringe holder is stronger than the previous version and can be used to easily mount syringes from 10ml to 60ml. The extruder assembly is divided into three main parts. If one component broke you can easily switch is without disassembling the extruder. The completely redesigned drive unit is stronger and smoother. The M8 screw has been substituted with a T8 lead screw. Two versions are available with a 2:1 and 4:1 reduction. The 4:1 reduction provides a higher extrusion force. BOM Mount plate: 4x nut M5 Syringe holder: 4x bolt M5x50 mm 4x nut M4 Guide: 2x square nut M3 2x set screw M3x10 mm 1x bolt M4x10 mm 4x bolt M4x16 mm 4x bolt M4x30 mm 2x steel rod (or tube) 4 mm OD x 157 mm 2:1 Gearbox: 4x bolt M4x30 mm 8x nut M4 2x trust bearing 10x24x9 mm 1x T8 lead screw 8mm OD x 200 mm 4x flat-head bolt M3x12 mm 4x set screw M4x8 mm 1x Nema 17 stepper motor 4:1 Gearbox 5x bolt M4x40 10x nut M4 1x bolt M5x40 1x nut M5 2x trust bearing 10x24x9 2x trust bearing 8x16x5 1x T8 lead screw 8mm OD x 200 mm 4x flat-head bolt M3x12 4x set screw M4x8 1x Nema 17 stepper motor Tools: M4 tapper 8mm drill bit saw screwdrivers hex keys