Passive Cell Phone Speaker

Hey everyone!

Here's a new Instructables for a fun and quick project I put together, the passive cell phone speaker!

This project was made out of some pine boards I had and a new 16-piece hole saw kit I purchased.

So with out further ado, let's get started!

The first step I took, was to take the pine boards over to my chop saw and cut out 8 - 6x6 inch pieces.

Next, I took each of the 8 pieces and found and marked the center on each one of them.

Then, I took out my 16-piece hole saw kit and picked out eight different sized saws (going from larger to smaller) to cut holes in my pine pieces. I basically wanted to cut stair step holes, in order to sand down the sound funnel later on.

After cutting and sorting out my pieces, I glued them all up to create the body of the speaker.

Next, I took it and started to sand and smooth down the outside edges.

Next, I started shaping the funnel for the speaker.

This part was a lot more work than I intended and took a few different methods before I finally got the shape down to what I wanted.

The last piece that I needed to add was the section for the sound to travel through from the phone.

I created another funnel shape for the both the phone to sit into and for the sound to travel down into the speaker. I then glued it to the rest of the speaker, along with the back pine piece.

After it glued up, I took some Minwax Pre-Stain wood conditioner to prepare the speaker for the stain I would put on.

Then after the pre-stain dried up, I added some Minwax 'Golden Oak' wood finish to add some color to the speaker and really help the grain pop.

Voila, the speaker is complete!

This was a fun and quick project that I think turned out really well.

Let me know if you have any questions, and let me know what you think!

Be sure to watch the video on how this was made, and to hear the speaker in action: