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Solar Panels holders (Solar powered delta)

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Sunhusky.png By Michigan Tech's Open Sustainability Technology Lab.

Wanted: Students to make a distributed future with solar-powered open-source 3-D printing.
Currently looking for PhD or MSC student interested in solar energy policy- apply now!
Contact Dr. Joshua Pearce - Apply here

MOST: Projects & Publications, Methods, Lit. reviews, People, Sponsors, News
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MOST Delta filament as guide.JPG This page was part of an MTU course MSE4777 OA and MSE4777 OB/MSE5777/EE4777/EE5777: Open-source 3-D printing

Please leave comments using the discussion tab. The course runs in the Fall semester. It is not open edit.

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

Fig 1:MOST delta 3D printer  
Fig 2:Spool_holder  
Fig 3: Solar powered Delta side view  
Fig 4: Printer PV Power Supply unit  
Fig 5: Battery mounting, Delta top view  
Fig 5: Battery casing mounting  
Fig 6: Melzi casing mounting  
Fig 6: 3D printer in a Duffel bag  


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]

  • 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]


  • 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


  • PLA
  • Connector wires

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