here a short "special" part of the process, as some of you asked to see some pictures ...
Inserting power magnets to outer and inner ear cap
I used round power magnets with two different heights. Here you can see them paired up. One magnet is heigher. It isn´t really neccessary, using all the smaller ones would be sufficient as well. I just had some of those higher magnets left ...
I used a drill bit with the same circumference as the magnets have and drilled them carefully where I wanted them to be. Type A drills are for the smaller magnets, type B is for the higher magnet. Be sure to position the magnets wisely to get a good end result of "closing the ear cap". I positioned one at the top and two at the bottom of the cap.
Now I took one pair of magnets and positioned them into one of the type A drill holes. Always use both magnets connected when inserting them to avoid the wrong magnet poles.
I took some piece of wood (you can use a small brush or something else too) and put some color on the magnets top.
The wet color on the magnet.
Carefully press the outer ear cap onto the colored magnet. I used this method for the other two holes too. The result is a color circle on the inside of the outer ear cap. this way you can easily see where to drill the opposite holes. Maybe there are better ways to achieve the same result but this worked fine for me.
The opposite holes after drilling.
A tip for drilling: Better go for several steps to deepen the holes. I drill a bit, put the magnets in to see how deep they go and if needed drill again. Take your time and don´t drill too deep.
The inner ear cap with magnets glued in. I use a strong glue and let it dry for several hours before testing. The powermagnets are really "powerful" and would rip the opposite magnets out of the holes if the glue hans´t cured enough! So again: Take your time before testing.
The magnets inserted on the outer ear cap.
On the next three pictures you can see the final result as I simply put it on.
Hope I could give you some hints/inspirations to get it done yourself!
Have fun!
Manuel