Geometric shapes are super trendy at the moment, and what’s cooler than a giant 20-sided icosahedron hanging from your ceiling? If you want to create your own bespoke and very unique ceiling light, then this is the DIY for you.
Tools & materials:
Cost, Duration and Diﬃculty:
We used free reclaimed wood for this project, however, should you need to buy wood, this project shouldn’t cost any more than around £15. The whole DIY took us no more than 2.5 hours to complete.
Step 1 – Cut Wood with an Angled Edge
For this project, we’re using some reclaimed wood, but you can use new planed wood if you choose. You want your wood to be around 1cm thick by 2cm width and you will need around 10m of this.
The ﬁrst step is to put an angled edge onto one side of your wood. Using a digital mitre gauge, set the blade on your table saw to a 68.7degrees tilt with your fence 1cm away from the blade. You can then cut your wood lengthways along this set-up to add that angled edge.
Once you’ve done this, the side proﬁle of your wood should look like this:
Step 2 – Cut 30º Angles on Either End
Now your lengths of wood have an angled edge on them, you’ll then want to cut them up into smaller pieces with a 30º cut on each end. These small pieces of timber will form a triangle when aligned together.
To do this, set your table saw mitre gauge to the 60º position and align your wood so the angled edge is on the far side away from the blade. Cut one angle and then ﬂip your wood around and make the same cut in the opposite direction around 15cm down.
If you’ve cut these correctly the bevelled edge you added in step 1 should be on the longest side. You will need 60 individual pieces of these and they look like this:
Step 3 – Glue Wood into Individual Triangles
Now you have all your pieces, you can go ahead and begin to assemble the icosahedron shape. This is made up for 20 triangular sides so you will need to create 20 individual triangles. To do this, use some wood glue along each of the 30º cuts and ﬁrmly push together, wiping away any excess glue.
We recommend leaving this for a minimum of 24hours before moving onto the next step.
Step 4 – Glue Triangles Together
Once your triangles have dried, all you need to do is assemble them together. Apply some wood glue to the edges and push the triangles together. The angled edge you added in step 1 should ensure the shape begins to ‘close in’ as you do this.
You’ll want to wrap each glued edge in masking tape whilst it dries and we recommend only glueing 5 triangles together at one time to make sure it doesn’t become ‘too heavy’. Once they’ve dried, you can continue and add more.
Once you’ve glued all 20 sides together, it should now look like this:
Step 6 – Creating the Pendant Fitting
Now we have the shape fully built, we just need to turn it into a light ﬁtting. To do this, we’ll need to be able to secure a pendant ﬁtting into the centre on the icosahedron shape we’ve just made.
Cut a solid triangle shape from a thin piece of plywood. This should be the same size as one one of the triangles on its smallest side. Drill a hole through the centre of this, and cut the triangle into two pieces.
Step 7 – Attach Pendant Fitting
Slot the pendant through one of the triangles of the icosahedron shape so it’s positioned in the centre. Apply some wood glue to each piece to triangle you just cut and glue this to the inside of the same triangle. The hole in the triangle should slot around the cable of the pendant. Once this has dried, the pendant ﬁtting will rest on this triangle when it’s secured to the ceiling.
Step 8 – Fit to Ceiling and Enjoy!
Now all you need to do is ﬁt the light to a ceiling and enjoy your bespoke and unique geometric creation!
This article was written by Kerry, who’s blog you can find at kezzabeth.co.uk. Kerry is a DIY blogger who shares inspiration for home renovation, interior design and hacks for those on a budget!