Potential early crystolecular building blocks: Difference between revisions

From apm
Jump to navigation Jump to search
Space-filling polyhedra holding together via vdW forces: added graphic screencap from simulation video
Line 56: Line 56:


[[File:Philip Turner 2024 -- Strength of vdW adhesion.png|350px|thumb|right|Screencap from simulation by Philip Turner.]]
[[File:Philip Turner 2024 -- Strength of vdW adhesion.png|350px|thumb|right|Screencap from simulation by Philip Turner.]]
{{wikitodo|Maybe add Philip Turners rhombic dodecagghedron crystolecule assembly as an example.}}


See page: [[Polyhedra of peculiar interest]]<br>
See page: [[Polyhedra of peculiar interest]]<br>

Revision as of 06:29, 20 April 2025

This article is a stub. It needs to be expanded.

Extruded 2D building blocks

Self centering building blocks

Possible (prismatically extruded) crystolecule building block shape that exploits self centering. It converts vdW sliding into vdW ripping in a Borromean ring like way.
Error creating thumbnail: Unable to run external programs, proc_open() is disabled.
Scalable svg version

Special geometry example. Snowflake building lock emplpoying the multi V groove self centering principle.
Converting weak sliding vdW force to strong ripping vdW force.
A bit like Borromean rings.
Once one part is out the others can be slid out.
Note that this is a 2D example.
Assuming mostly in plane loads or some in-plane horizontal constraints.

Puzzle pice building blocks

This should be self-explanatory.
Design principle of passive pretension.
(TODO: To investigate: Are negative stiffness bearings principles applicable?)

Slot in plates

GIK (great invention kit) MIT center for bits and atoms (Langford paper)

Some research done on that at the meso/microscale by MIT CBA (center for bits nd atoms) Nanoscale it would not be friction holding the plates together but vdW forces or more strongly clips.

Preferrybly the clips lave some pre-tension to give the connections good stiffness.
Design principle of passive pretension.
(TODO: To investigate: Are negative stiffness bearings principles applicable?)

1D chainable reciprocative pseudogears

(wiki-TODO: Add image showing the principle.)

This crosses over a bit into Potential early crystolecular mechanisms.
See page: Reciprocative pseudogears

The core idea here is to use the meshing of the
linear rack-gear teeth as form-closure-connection. Fallapart is constrained by vdW forces and or channel walls.

Q: How to do the interlocking assembly of matching channels segments?

Apply the desingn principle of multi V groove self centering.
Long weak bending spring pressing gently into centered position.

Related: ReChain frame system

Space-filling polyhedra holding together via vdW forces

Screencap from simulation by Philip Turner.

See page: Polyhedra of peculiar interest
Side-note: These may also be of interest for much later much bigger much more advanced microscale microcomponents.

Video by Philip Turner:
2024 – Strength of vdW adhesion
– Note that unlike in the simulation at the higher speeds the incoming block would actually
melt/evaporate/atomistically disintegrate but the force field used does not allow for breaking bonds.
– Also beware of the misleading aspects in animations of diamondoid molecular machine elements.

Related