Free floating crystolecule
Getting crystolecules into huge scale free space should afford some easily manageable conscious effort.
If charged they than can be manipulated with conventional techniques, electric fields, magnetic fields, and optical traps.
Cooling them down aka slowing then down is possible so far that gravity acting on them can be observed.
But these crystolecules are far outside machine phase deep inside gas phase (or dystactic phase).
Instead getting crystolecules down to low speed and
keeping them close to the emitting source in a small volume and
having them without a charge is likely very difficult.
Due to intercrystolecular forces being many orders of magnitude bigger than gravity
either they stick like hell or they fly off like hell.
There is no pushing them out and they fall off by gravity locally at small scale.
Crossing the heat-overpowers-gravity size-scale they fall in a large parabolic arc in a good vacuum.
Or are diffused away to who knows where in a gas.
High energy ejection out of machine phase into dystactic phase
VdW suck-in and suck-on can accelerate a crystolecule enough
such that it overshoots the end of its unbostructed superlubric rail and it escapes into free space.
High ebergy intercrystolecular snapping modes can cause
high energy mechanical exctiations which in turn can shoot off a crystolecule into free space.
A piston in a slightly too tight cylinder can cause push-out by Pauli-repulsion.
See the simulation clip. The push-out effect gets weaker the further it is pushed out,
Attained speed gets dissipated making it slow down a bit,
but in the case of this specific simulation it still sufficed for an eventual ejection.
There is also a bend-snap happening at the very end making for a sudden re-acceleration.
And for a lot of very strong mechanical mode excitations.
Also related here is the topic of accidental heatpumps.
These are high speed high energy events compared to proposed operation speeds and energies. Usually happening at least at several dozen m/s speeds.