I attempted to make 3 different kinds of speakers using the same format for my project. I made these blocks on the tables saw to cut the grid like shape into the surfaces.

The first  (top left), I used conductive ink and painted it in a spiral pattern between each of the grooves. However, the ink was hard to manage and would bleed over into other paths making it difficult to keep from shorting my fuse. I tested this one and I’m not sure if it is shorting somewhere or it is too quiet to hear.

The second piece I made (bottom), was using copper tape. I spiraled it around using the grid blocks once, until I realized that I could make a second spiral along the opposite side of the channel. Theoretically this could function as 2 speakers but I only tested it as 1. This one does make a sound if you listen very closely, but not very good quality.

The last speaker I made (top right), I used conductive thread. I managed to wrap the thread once around each individual block on the grid before moving to the next one. To my surprise, when I tested this one, it made the loudest and most clear sounds of the three. However, It was still very quiet…

The wood that I used was 3/4 of an inch thick, which seemed a lot for a magnet to reach through, so to compensate for that I cut pockets in the center of each of the speakers to try and allow the magnets to get closer to the face. Unfortunately this only made them slightly more audible.

Although none of the speakers are not as loud as I’d hoped, I found the project to be interesting and learned that it is not so simple to make a speaker from wood, but they are kind of pretty! 😉