There are a small and a big version of this file.
I recommend the big version. It's worth the Filament! They are absolutely the same except for their sizes.

You need

All 14 individual Gears
1 Heart
14 Connectors.
There are "All" File that have everything you need for a full assembly.
There is also a tool that helps with putting in the connectors.

Print Settings

You can use Standard settings for all parts. I used a brim on the Gears to prevent them from toppling over. No supports needed.

Assembly

I made an Assembly Video: Watch the video

Troubleshooting

Watch this Video: Watch the video

Technical Data

The Big Gear Skull takes, around 500g of Filament and 19 hours to print on 3 Separate Plates.
The Small Gear Skull takes, around 110g of Filament and 6 hours to print.