Gem-gum balloon products
A concept introduced as "baloon robots" by Josh Hall better known as the inventor of utility fog.
As mentioned on the "diamondoid metamaterial" page in products of advanced atomically precise technology actuators for reasonable forces use up only a rather tiny fraction of the product volume since they can run at very high power densities. It should thus be possible to make various kinds of active structures that are inflatable and integrate motor-muscles, shearing drives and or other stuff.
Contents
Compartments
Micro sized compartmentisation (similar to the ones that may be found in diamondoid heat pump system or entromomechanical converter but maybe bigger and softer due to lower pressure) should allow for safe use of high pressures without explosion hazard. Internal tensioning structures (e.g. cables) can define the outer structure.
Recycling
It may be to note that when such structures aren't filled to liquid densities (~1000bar at room temperature) in some sense one leaves the machine phase a bit that is new degrees of freedome are introduced atomic resolution (the products are still atomically precise thoug. Very floppy structures must be brought back to microcomponent-level-machenine phase before their microcomponents can be recycled.
Use in Space
In very cold environments below the boiling point of air (~ liquid nitrogen) like in the outer solar system either heating and isolating is needed or hydrogen can be used as filling gas.
