Good point . . .
I don't know, but I doubt surface tension would be enough for a solid bond between layers.
The natural bonding effect of surface tension could be further augmented, however, with a slowly rotating print chamber, at around 0.5-G or better.
A 2 meter diameter (a bit more than 6 feet) centrifuge spinning at 30 rpm, or 1 every 2 seconds, would grant a G-force just over a value of 1 gravity.
Interesting experiments will likely follow its installation.