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B&O Speaker: Creative 9

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Creation's quality: 5.0/5 (1 vote)
Evaluation of members on the printability, utility, level of detail, etc.
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  • 26 downloads

3D model description

Final Project:
https://www.youtube.com/watch?v=JZt4YDcrQ08

Link to our blog:
https://svigermors.wordpress.com/

The speaker is very easy to assemble and disassemble, which makes it easy for the user to change the shell of the speaker if broken, or simply if wanting to change the design of the speaker

We have made a smaller speaker because we want it to fit into more versatile environments, like a kitchen or an office. The size comprimizes the sound quality a bit, but compliments the context.
Weight

We have placed the heavy parts in the bottom of the speaker for stability.
Furthermore we did not use a solid filament pattern.
The speaker ended up with a weight of 700 grams.

We created a simple base, in the form of a cylinder, so it would be easy to create a new custom shell, and slide it on. The aestethics therefore relies on the premade B&O shells and the custom mades. The colours are up to the users, and the base parts can be created in various colours aswell.

As previously mentioned the sound test showed us, that larger the cabinet, the better sound. This means, that our compact speaker has a sound limit for maximum quality sound.
The tweeter is placed on top of the woofer, with a fitting distance in between, to avoid destructive interference.

Because of the cylindrical shape, we split the base into two parts, so it didnt need any support material. This was a huge factor for the printing time, and saved us alot of hours and material. We also lasercut the mounting plates to reduce printing time and precision
The print time, using only one 3D printer, takes about 40 hours of printing.

The cabinet has a medium filling, that is rather strong, with a high durability. To be safe, we mounted our speaker parts on a lasercut Acryl plate, since this is stronger than a 3D print, giving us more stability.

The internal design is created with the intentions of an easy assembly.
Assembly & maintenance

The base is created with fittings, so it has an easy assembly / disassembly.
Everything inside is only fastened by tension and friction – no gluing or screws needed. It is a very compact internal design.

The internal bits are connected to eachother following the instructions mentioned earlier. We have changed the power cord, from a Raspberry Pi 5V wall plug, to a 5V USB cable, that can be used in any computer or phone charger. This also gave an advantage creating a compact design.

We have designed the speaker, so it has to be plugged in with the USB cable to work.
There’s no interface on the speaker, because we decided to solely use airplay connetivity, from a compatible device. This means that the user has to control volume, tracks, etc. on their device.

  • 3D file format: STL

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License

CC BY

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