Build your Own DIY Glass Bluetooth Speaker
Do you want a piece of gadget in our house that confuses every guest that visited?
Is it a piece of décor? Is it a light bulb?
Well, it’s actually a low-cost Glass Bluetooth speaker that looks visually charming and resembles an Edison light bulb, it gives off a very warm and cosy light that softly illuminates a room and wait that’s not enough it has a great sound quality for a DIY speaker.
The best part of this gadget is that you can build it on your own, keep reading to find out how you can make this innovative piece of gadget at home.
An easy step by step guide curated just for you and your love of DIY.
Let’s dive in:
- Step 1:
The very first thing to work on is the base, this is going to be 3D printed and so needs to be designed first.
As you can see it’s separated into 3 sections, the top section will house the speaker and support the and glass, while the middle one is shaped like a cone so that it reflects the sound in all directions, the bottom section will simply house the electronics.
Each piece will take around 3 hours to print in high resolution, however, if you don’t have the 3d printer you can use printing services available online. After printing, sand down the parts for a smooth finish.
- Step 2:
It's now time to join all the parts together, we’re going to need 4 lengths of enamelled copper wire for conducting the sound signal as well as carrying the power for LED filaments.
Insert these through the holes on the 3d prints and build the structure from top to bottom and glue the pieces in place. If you are not satisfied with the smoothness of the surface of the 3D print even after sanding it down, you can give an acetone vapour bath. You can now spray this with plastic primer and paint it with your favourite colour.
- Step 3:
Time to add the speaker, the one used here is a 2inch full-range driver, inexpensive yet sounds amazing. Take off any labels, use some metal polish, sand down, or you can even remove the mounting brackets if necessary to give the speaker a clean and shiny appearance.
With that down our speaker look much more presentable and can be mounted onto the base. To make sure there are no air gaps, you can add a bit of silicon sealer all the way around the rim and push the speaker into its position. Cut down the two opposite wires and solder them to the speaker cable.
- Step 4:
Now let's work on the light to achieve that retro, old and rusty feel. You’ll need 6 low-voltage LED filament bulbs, these are tiny but looks really cool when lit up.
Solder them in 2 sticks of three and link in series meaning, the one positive side will link up to the negative side of the next. Once done, we can solder them together to a tiny length of copper.
Bend the 2 remaining wires into shape using pliers, make sure each side is equal and straight.
After the LED is soldered to them it should look something like this:
- Step 5:
Let's work on the electronics, firstly drill out a hole for the power socket at the back as we will power this externally. Now glue down an adjustable voltage step-down board and solder to the power socket we just added.
Plug a 19-volt power adapter into the socket and monitor the output voltage of the step-down board, keep adjusting the trimmer until the output is a stable 16 volt. Now, you can solder it to the copper wires supporting the LEDs.
Here, we also have added a 1ohm resistor to limit the current to the LEDs as they warm up. The LEDs must now glow softly and warmly.
- Step 6:
Now let's work on the Bluetooth amplifier, we’ll be building one out of several low-cost components, we recommend you have a look at the circuit diagram on how to fit them all together and follow it. Once wired up successfully, you should be able to stream music to it from your phone.
With no enclosure, the speaker will not sound so good and to solve this we’ll simply use a drinking glass. Mounting it is just a case of clipping it onto the base and this will complete our build!
After plugging in the 19v power adapter the LED should glow and the Bluetooth will pair with your chosen device.
Congratulations, you did it! Your very own glass Bluetooth speaker is ready to be flaunted!
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