How to build a reprap 3D printer

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Update: The Mendel90 printer built by members from the class was finally completed in February 2016. It currently has a nickname "Mendy" and is on Octoprint (access at http://192.168.200.90)

How to Build a RepRap 3D Printer

This is a series of classes that go through the process of building a RepRap (self-replicating rapid-prototyping machine) from sourcing the parts, building the hardware and electronics, to calibrating the printer.

Class Goals

  • Teach people the basics of how a 3D printer works.
  • Choosing the best design, and sourcing parts form the BOM (bill of materials)
  • Explore best practices for assembly and when to build from scratch or buy pre-made kits.
  • Troubleshooting 3D printer electronics such as stepper drivers, control boards, wire management.
  • Calibrating firmware and slicer software to fine tune the 3D printer for best results.

Current Class Progress

  • Part 1 - What is a RepRap?
    • What is 3D printing/types of 3D printing
    • The RepRap foundation project/ Open source hardware.
    • What are the parts of a 3D printer, various functions.
    • Discussed the chosen design: The Mendel90.
  • Part 2 - Building the chassis
    • We completed assembly of the frame from the pre-cut Dibond sheets
    • Started Sourcing the rest of the hardware.
    • How to customize the Mendel90 using python/OpenSCAD script by Nophead.
  • Part 3 - X - Axis Assembly
    • Completed the X - axis assembly
    • Started wiring with ribbon cables.
    • 3D print more parts for the Mendel90 DiBond.
  • Part 4 - Y - Axis
    • Started with laser cutting cardboard insulator for heated build plate.
    • Finished X - Axis assembly and carriage wiring.
    • Started Y - Axis assembly.
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