First Ferrofluid with PCB coils test!
The magnetic field of the windings need to be a little stronger but the concept seems to be working. The idea is to have ferrofluid dancing around from a simple PCB. This is obviously just a concept but with more windings and perhaps with a core in the middle of these printed windings, it can be possible. (Also, I need to find a way not to stain the container with the ferrofluid .. its a little messy)
This was tested with my open source Linear PCB Motor board: