I wonder how large you can make these. Also is the linear movement limited to one direction? Like could I make one that can move north, south, west and east?
> Also is the linear movement limited to one direction?
You would need to know more about how the mechanism works (how the droplets and the circuits controlling their surface tension are interleaved,) to determine whether 2 axis control is possible in a single device. However, I don't see any reason two single axis devices couldn't be stacked to achieve 2 axes, as is done routinely with conventional machines.
You would need to know more about how the mechanism works (how the droplets and the circuits controlling their surface tension are interleaved,) to determine whether 2 axis control is possible in a single device. However, I don't see any reason two single axis devices couldn't be stacked to achieve 2 axes, as is done routinely with conventional machines.