Customisable 3D printable geometric light panels which connect to Hue and Alexa to brighten and personalise your space.

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Meet Geoleaf, my low cost and 3D printable version of Nanoleaf lighting panels. They can be arranged in any pattern to suit any space and thanks to the low cost of only around £3.40 a panel it won’t break the bank. They have built in Wifi control which is driven by the feature rich WLED firmware running on a Wemos D1 Mini.

I have wanted some Nanoleaf lights for a long time but the price has always been too high for me. So I thought I would set about creating my own version using a 3D printer. Each lit panel works out at about £3.40 in materials to make and I’m very happy with the end result.

You can assemble them in any order to suit your wall space and other shapes can be included such as the optional square panels. I have offset them from the surface to allow a stylish glow out across the wall in the evenings and the panels themselves are bright enough to be seen in the daytime.

I’m using an ESP8266 to control them using the brilliant WLED firmware and its built in webserver. The smarts for the project are all housed in the discreet rectangular panel at the bottom. They can also be programmed to automatically mimic a Phillips Hue bulb or respond to Alexa commands.

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  • 1
    See what your going to make and the things you'll need:

    For those of you who prefer to watch something instead of reading I have created a detailed tutorial video. Don't worry though, everything in the video (and a little more) is all explained in this guide. Though, even if you will read through this guide I highly recommend looking at the introduction in the video to get an idea of the effect the lights achieve. :)

    To build your own version of Geoleaf you're going to need just a few items and tools. None of these should be too tricky to find and I have included links to where you can find the items online:

    There are two different options for connecting the electronics together for this project. I learnt how to design a PCB for this project and have uploaded the design to PCBway where you can order a PCB of your own for just a few dollars/pounds. This is the simplest way to assemble the electronics:

    Or optionally you can use a piece of Adafruit PermaProto board to connect everything along with some wiring connectors for the higher current connections. You will find details of both methods later in the instructions

  • 2
    Printing the Triangles - Walls

    The first thing we need to print are the sides of our triangles. The file for this is attached 'Triangle-Walls.stl'.

    I printed mine in 3D Jakes ecoPLA Matt Black as I wanted it to contrast with the grey walls in my home office but you can use a different color if you prefer. As I will be using fourteen illuminated triangles in my end design I will print fourteen of these 'walls'.

    My print settings were:

    • 0.3mm layer height
    • No supports
    • No brim
    • 30% infill

    This resulted in a print time of roughly 1 hour 27 minutes per panel.

    If you would like to add in some square illuminated panels than you can find the optional files for the squares here on Etsy: . The donations received through people buying the files for the optional square panels helps to fund the next project I am working on - but please note this is optional and not necessary to complete the

  • 3
    Cutting the Acrylic

    For this step you will need:

    • Acrylic sheets
    • Saw
    • Pencil

    I am using some 3mm thick opal acrylic to diffuse the light for this project. I purchased some A4 sheets which we can cut three panels worth of acrylic diffusers from. My fourteen triangles therefore required five A4 sheets.

    You can use a pencil to mark on the sheets (don't remove the protective film from them yet) an outline of the shape we need to cut. To do this, take one of your 3D printed triangular walls and place it onto the acrylic sheet so that the holes for the bolts is facing downwards. You can then trace the inside of this shape.

    There are several ways that you can cut a sheet of acrylic, such as scorring and then snapping, hot wires or saw blades. This is beyond the scope of this Instructable for me to go through the pros and cons of each method.

    I decided to cut mine with a fret saw. A hand saw or similar would work just as well. Once you have cut the shapes you can test there fit inside one of the triangles which will then allow you to trim any excess off before you remove the protective films from both sides of each of the panels.

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