1. Modeling in solidworks
So, to start this project we are gonna need a large aluminum rod at least 40 mm in diameter. I use a handsaw to cut a 25 mm piece and I must say that was a good workout. If you are interested in how I build it in solidworks you can click watch this. Now once we have our piece I flatten both sides and mark the position of the groove. I slowly cut a groove to a 35mm diameter with a cutout tool. This will generate a lot of heat so after some time let it cool down for a bit and then continue with the work. For the inner hole I used 30 mm hardened steel drill and so as before I needed to cool down the part a few times while drilling because lot of heat were generated during the procedure. Now I cut off the excess material and made a small chamfer on every edge of our holder.
3. Making grooves and final polish
I used a file to make a few grooves for the earphone's cable and then finish it with a smaller file for nicer look. After that I polish outside faces with polishing machine as much as I could and continue with a dremel tool with which I polish remaining inner faces and places I couldn't reach before and there we have it.
4. How to use it
I really hate that every time I take the earphones form my pocked they end up being bounded so I need to spend a minute or more to unravel them. So this is why I decided to make a holder. It is easier to ravel and unravel them and It also looks way cooler to have them stored on aluminum ring. It is also very light and compact to handle, the only thing I would change is to add a few more grooves for the cable but that is optional. If anyone is interested in earphones I have used, I must say that the quality of the sound is excellent for a 4$ earphones. Here is the link if you want to get one: https://goo.gl/c3UBdi I hope you like that instructable, please leave some comments if you have any suggestion how would you improve/change it.