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by coloursontheinside, published

DIY-Windowfarm by coloursontheinside Aug 18, 2016
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revival & redesign of the windowfarms project.

Windowfarms are a great & sustainable way to grow herbs & vegetables even in tiny flats. building them requires a bit of work and teaches a lot about plants. It's modular, scalable and easy to upgrade, which makes it a great educational project.

Since the community, by which they were developed, isn't reachable anymore, building instructions are hard to find. So here comes an optimised version of the farm, alongside with 3D-printable upgrades.

Read more about the windowfarm revival.

Print Settings

Printer Brand:



Kossel XL









How I Designed This

I applied a wide brim to ensure a good hold onto the next bottle

I integrated a riffled surface for a better grip.

Project: Windowfarm


  • Project Name:


  • Overview & Background:

    Students will learn how to build a basic hydroponic system from 3d-printed and upcycled parts.

  • Objectives:

  • plan the farm
  • print the needed plants
  • gather non-print-parts
  • identify all parts & their use
  • prepare plastic bottles
  • spray paint plastic bottles
  • cut & drill plastic bottles
  • prepare planting cups
  • insert planting cups
  • prepare rubber bands
  • assembly
  • install plants using clay pellets

  • Audiences:

    students should be able to handle a hand drill

  • Subjects:

    biology, physics, handicraft

  • Skills Learned:

  • using a 3D-Printer
  • understanding of upcycling possibilities
  • understanding of science & technology
  • understanding of hydroponic systems
  • using spray paint
  • planting plants

  • Lesson/Activity:

Find the assembly tutorial on Instructables

Duration: 4 units of 45 minutes.

  1. unit: Preparing & painting the bottles.
  2. unit: Drilling holes, preparing flower pots and gaskets.
  3. unit: Connecting the bottles & applying the cord.
  4. unit: Inserting the plants & mounting the farm.
  • Preparation:

    Students should be able to work scissors, a drill, and a 3D printer.

  • Materials needed
  • 5 plastic bottles (change the number to your needs)
  • 4 rubber bands (mine are 2mm wide - number of bottles minus one)
  • about 3 metres of strong cord, mine is about 2mm in diameter
  • dark spray paint
  • clay plant pellets
  • 4 plants (number of bottles minus one)
  • 4 hydroponics flower pots (number of bottles minus one) - if you can't get those, get black 'inside flowerpots'

  • Tools needed
  • FDM printer
  • sharpie
  • scissors
  • pliers
  • 27-30 mm crown drill
  • a drill roughly the same diameter as the cord.

  • Rubric & Assessment:

    At the end of the project, students achieved a basic knowledge of upcycling thinking & hydroponics.

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