Applications and Implications




what will it do?

As my final project, I would like to make a Speaker. The speaker will be a simple mono-speaker, with a small but power full 2-inch fullrange-speaker. The Cabinet for the speaker will be casted in concrete from a 3D-printed mould. To hide the electronics, the cabinet will be covered by a laser-cut plate with living-hinge. Above the speaker there will be a Cone-shaped wooden piece to reflect the sound to the sides.

who's done what beforehand?

I got some of my inspiration for my speaker from this, plywood sample from this project at instructables. When I saw the sample I instantly thought of making a speaker using this principle.
Another project I took inspiration from, is this concrete speaker. Besides the material I find the shape interesting as wheel, the "horn" should be a good feature for a speaker, so I would like to try that in my design, and combined with 3d-printing there are plenty of possibilities.



what materials and components will be required?


where will they come from?

I am not able to make all the components myself, so therefore I will have to buy some of them.
In my research I have found a nice little powerful fullrange speaker from a Danish company called Scanspeak. The speaker can be found here.
I will also need to buy a good quality power-supply, and all the electronic components for my amplifier.

what tasks need to be completed?


I am almost done with the speaker-design except the electronic components. I have conducted allot of research to figure out which type of amplifier is the best for my project, and have decided to make a class-D amplifier, because I do not have allot of space in my speaker-design. During the electronic weeks of the course, I have developed my interface for the volume control, so it should not take much time to complete this part.

what questions need to be answered?


I have never made a amplifier before, so I do not know what to expect. I will look into some other pre-made amplifier designs and will try to design my own one.

what is the schedule?


Due to the fact I commute between Copenhagen and Manchester, and have to take care of my job in FabLab Denmark, I only have one week to get the speaker done. I Will try to prepare so much I can, so it will be possible. I have made a little schedule to determine if it is possible or not.

It should be possible. But I do not have time to screw anything up.

how will it be evaluated?


I will evaluate my speaker at three points.

The Sound - does it make a decent sound.

The Design - is it easy to assemble, will there be a lot of vibration and how does it look with tree, concrete and the metal together.

The interface - how well is the interface designed and does it work.