Skull Speaker
A speaker that looks like a skull. It can be a halloween decoration (just dont make it yellow like I did)
Supplies
3D printer
Power Supply - AC to DC
Female Barrel Jack Connector
Battery Charging Board with Battery Protection BMS 5V Micro USB 1A 186 50 Charge Module
Micro 4.2 Stereo Power Amp
Step up Converter DC Voltage Regulator
EEMB Lithium Polymer Battery
Gikfun 5W Full Range Speaker
22 Guage Wire
Download Important Files
Download these files. The 3D models are so you can see it in 3D if you have Solidworks. The STL files you can use to print.
Slice Files for Your Printer
Go to your slicing software on your computer, for example, Cura Ultimaker is what I used, scale it 10x to convert to cm and slice. Then get the file on the SD card of your printer.
Print the Speaker Shell
Put your printer's SD card back into it and print the top and bottom separately. This should take around 30 hours because you need to print them separately.
Wire the Speakers to the Red Board
While you are waiting for the print, there are a couple things you can do. First solder the blue and yellow wires to the speakers negative and positive inputs respectively. Then plug the port at the end of the blue and yellow cords into one of the white boxes on the red board. Do this for both speakers.
Put the Circuits in the Shells and Put the Shells Together
Glue the curcuits and speakers into the shells and put the shells together, finally plug it in and it'll work