This is a 3D printed Speaker that you can print at home.
All you need is some enameled copper wire and a magnet!
You may have seen 3d printed speaker before, but this one is different since you will be printing all the parts of it, including the membrane itself and it is 0.1mm thick! It is so thin that the black resin we normally use is almost transparent after printing!
This is a good stress test for your printer and I do not recommend trying it on an FDM machine.
A good resin-based 3d printer should handle this.
If you like this instructable you can support me having a look at my IndieGoGo campaign here where you can now get your LumiPocket 3D Printer (that we used to print all the parts in this instructable), it is a project that I started one year ago as a simple hobbyist, and now has became (hopefully) my full time job.