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Desktop Loudspeaker

by Bernie314, published

Desktop Loudspeaker by Bernie314 Apr 10, 2018

Design Tools

Fusion 360

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Thing Statistics

1028Views 108Downloads Found in 3D Printing

Summary

This project is a 3D-printed chassis for an Airplay loudspeaker using a Raspberry PI and a HIFIBerry. The 3D-printed Raspberry PI & HIFIBerry holder, was found on Thingiverse:
https://www.thingiverse.com/thing:1011094

The project was done as part of the course (41030 Design of Mechatronics) at the Technical University of Denmark - DTU.
The projects was about designing by prototyping, so thats why we both have laser cut parts and 3D printed parts.
We were asked to design a 3D printed loudspeaker that adds value to the consumer via digital fabrication, where we have chosen to focus on designing a speaker for an Office Desktop.

Besides the 3D-printed and laser cut parts, we have used the following components:
Hifiberry
Raspberry PI & Power supply.
Tweeter - Datasheet in documents
Sub - Datasheet in documents

During the projects we kept a design/prototype log. If you want to read more about this project, and how our design process was, feel free to visit our blog: https://mechatronicsgroup8.wordpress.com/

If you want to print the loudspeaker chassis yourself, see Post-Printing for needed materials and link to assembly guide.

Tools needed to create the Thing:

3D-printer
(Lasercutter)
Ordinary screwdrivers
Superglue
Insulation stripper
Sandpaper (grain 60 & 120)
3D printed Rasberry Pi/HIFIBerry Assembly: https://www.thingiverse.com/thing:1011094

Print Settings

Printer Brand:

Ultimaker

Printer:

Rafts:

No

Supports:

Yes

Resolution:

0.20mm

Infill:

20%


Notes:

The parts should be printed in 4 separate prints.
The middle chassis is uploaded both with and without the pattern.

Post-Printing

Assembly Time: 1 hour

You will need:

  • The Raspberry Pi/HIFIBerry enclosure
  • 4xM4 screws
    To protect the electrical components in the speaker, the Raspberry Pi and HIFIBerry is mounted in a separate closure. The enclosure consists of three components which each need to be 3D-printed. Once you have got the components they are stacked on top of each other and screwed together with 4xM4 screws. (remember to guide the wires through the holes)

Main Assembly:

You will need:
The bottom, middle & top solid + front grid
2xRound sticks, for the feet
6xM4 screws**ANDERS!?
8xM4 nuts and bolts
1xWoofer (Peerless PLS-P830986) - see datasheet in documents
1xTweeter (Peerless BC25SC06-04) - see datasheet in documents
1xRaspberry Pi
1xHifiberry
1xPowerlsupply
Approx. 600 mm of speaker cable
The assembly consists of four major components. A top, middle and bottom solid plus a front cover. See picture.

Once printed:

You can see an assembly guide here:
https://mechatronicsgroup8.wordpress.com/2018/04/08/build-your-own-bo-speaker/
The guide will take you through step by step, constructing and assembling the loudspeaker from B&O Create.

How I Designed This

This is designed by a group of Design Engineer students, and not just me. As mentioned in the summary, you can see our design process at our blog:
https://mechatronicsgroup8.wordpress.com/

Overview and Background

The project done as part of the course (41030 Design of Mechatronics) at the Technical University of Denmark - DTU.

Materials Needed

Fillement Needed: 80 m.

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