It's 30 minutes until the coin cell challenge ends and we managed to bodge everything together. The cell even got painted an hour ago to look more like a "real" coin cell.

The afternoon was used to print some internal parts. After that the case was spraypainted with a silver color since the ordered filament didn't arrive on time.

The pictures show our great work soldering and drilling a hole for the connection to the 3D printer.

There were a few nice ideas left for a more polished version of this, but it was a lot of fun to build.