Instructions | Electronic Ghost

1

Making the ghost shape

Before soldering the circuit, I 3D printed the shape of the ghost. You can download the stl file from here.
2

Soldering the circuit

The schematic is a very simple one which you can find here.

I cut two holes in the lower part of the ghost shape, in order to solder the battery holder on the outside. This way the silicone didn't get stuck in the battery holder.
3

Potting

Adding the silicone was a bit tricky, because of the air bubbles. I tried heating the ghost hoping the bubbles would rise to the surface, but it didn't work as expected.
4

Final result

After the silicone dried, I had to cut the ghost carefully (the silicone is very sticky so I couldn't just take out the 3D printed shape). Then I added a bit more silicone to smoothen the outline and I let it dry again. This is the final result!

Electronic Ghost