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This page is part of an international project to use RepRap 3-D printing to make OSAT for sustainable development. Learn more.

Research: Open source 3-D printing of OSAT RecycleBot LCA of home recyclingGreen Distributed Recycling Ethical Filament LCA of distributed manufacturingRepRap LCA Energy and CO2 Solar-powered RepRapssolar powered recyclebot Feasibility hub Mechanical testingRepRap printing protocol: MOST Lessons learnedMOST RepRap BuildMOST Prusa BuildMOST HS RepRap buildRepRap Print Server


Make me: Want to build a MOST RepRap? - Start here!Delta Build Overview:MOSTAthena Build OverviewMOST metal 3-D printer Humanitarian Crisis Response 3-D Printer


For full details on a more advanced version of this solar-powered 3-D printer see High-Efficiency Solar-Powered 3-D Printers for Sustainable Development

Introduction[edit | edit source]

This page describes the modifications to the MOST Delta printer' as part of my graduate MY4777/MY5777/EE4777/EE5777 Open-source 3-D printing class project. This project enable the use of the MOST-delta printer off-the grid using solar power. These modifications not only makes the solar powered 3D printer a valuable tool for poverty alleviation and wealth creation in the developing world, but it also gives any 3D printing enthusiast the freedom to safely transport their printer to a remote camping site or any location of their choice. The modifications steps involved the following;

  • PV system sizing - 60 W system.
  • Coming up with the bill of materials (BOM).
  • Designing and construction of a PV power supply system (fig.4).
  • Designing and printing of solar panel holders (For safe transporting in a duffel bag) (fig.3).
  • Design and printing of battery casing holder(mounted on top side of the top plywood board)(fig.5).
  • Mounting the power supply under the top plywood board (inner-side).
  • Design and printing the Melzi board casing (for protection during transit)(fig.6).
  • Customized spool holder (easy to assemble) (fig.2).

Bill of Materials[edit | edit source]

  • 12V/1.35A 25W solar panels x 3 [1]
  • 12A/100W 4.5-30V to 0.8-30V DC Buck Volt Converter x 2 [2]
  • Li-ion 20Ah battery (includes PCM with balance function)[3]
  • 36" Duffel bag[4]
  • Bolt with nuts x 3
  • LED x 2 [5]
  • Switches X 2 [6]
  • Diodes x 5 [7]

Source Files[edit | edit source]

Tools[edit | edit source]

  • 5.5mm nut driver
  • Sharp x-acto-like knife
  • Small, flat bladed screwdriver
  • No.2 Phillips screwdriver (a power driver is best)
  • 1.5mm allen wrench
  • 2mm allen wrench
  • 2.5mm allen wrench
  • 3mm (1/8") drill bit
  • 8mm (5/16") drill bit
  • Tape measure (large calipers >300mm are better), preferably metric
  • Soldering iron
  • Wire strippers and cutters
  • Needle nose or other pliers

Consumables[edit | edit source]

  • PLA
  • Connector wires

Note that all of the pictures in the process can be enlarged by clicking on them.