Microcomponent - Revision history

Apm: Category:Far term target

2026-03-29T17:12:48Z

← Older revision		Revision as of 19:12, 29 March 2026
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	[[Category:Technology level III]]		[[Category:Technology level III]]
	[[Category:Site specific definitions]]		[[Category:Site specific definitions]]
			[[Category:Far term target]]

Apm: /* Related / added link to yet unwritten page Polyhedra of peculiar interest

2025-02-21T09:06:42Z

Related: added link to yet unwritten page * Polyhedra of peculiar interest

← Older revision		Revision as of 11:06, 21 February 2025
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	* assembled to [[mesocomponent]]s (or final product)		* assembled to [[mesocomponent]]s (or final product)
	* assembly is typically reversible		* assembly is typically reversible
			----
			* [[Polyhedra of peculiar interest]]

	= Microcomponent threshold =		= Microcomponent threshold =

Apm: /* Shapes of microcomponents */ made headlines into bold lines

2023-05-28T12:25:17Z

Shapes of microcomponents: made headlines into bold lines

← Older revision		Revision as of 14:25, 28 May 2023
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	* and many many more ...		* and many many more ...

	~~===~~ Transitions between the most basic polyhedra (related to bcc, fcc, and hcp crystal structures) ~~===~~		'''Transitions between the most basic polyhedra (related to bcc, fcc, and hcp crystal structures):''' <br>

	Transitions from rhombic dodecahedra (fcc WS-cell) to trapezo-rhombic dodecahedra (hcp WS-cell) and vice-versa are trivial in the natural directions. <br>		Transitions from rhombic dodecahedra (fcc WS-cell) to trapezo-rhombic dodecahedra (hcp WS-cell) and vice-versa are trivial in the natural directions. <br>
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	{{wikitodo\|add the OpenSCAD screen-cap showing the relation between the fcc and bcc polyhedra}}<br>		{{wikitodo\|add the OpenSCAD screen-cap showing the relation between the fcc and bcc polyhedra}}<br>

	~~===~~ Special sets of shapes ~~===~~		'''Special sets of shapes:'''<br>

	Flat surfaces would be critically important for things like larger scale bearings like e.g. in [[infinitesimal bearings]]. <br>		Flat surfaces would be critically important for things like larger scale bearings like e.g. in [[infinitesimal bearings]]. <br>
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	is presented here by George W. Hart [http://www.georgehart.com/rp/FCC.html]		is presented here by George W. Hart [http://www.georgehart.com/rp/FCC.html]

	~~===~~ A word on the octet truss ~~===~~		'''A word on the octet truss:''' <br>

	'''The rhombic dodecahedron shape is special in having all its faces normal to the struts of the octet truss (110 direction).''' <br>		'''The rhombic dodecahedron shape is special in having all its faces normal to the struts of the octet truss (110 direction).''' <br>
	For details see page: [[Octet truss]]		For details see page: [[Octet truss]]

Apm: /* Shapes of crystolecules */ <= crustolecules fixed to microcomponents

2023-05-28T12:23:11Z

Shapes of crystolecules: <= crustolecules fixed to microcomponents

← Older revision		Revision as of 14:23, 28 May 2023
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	* should be meaningfully [[microcomponent tagging\|tagged]]		* should be meaningfully [[microcomponent tagging\|tagged]]

	== Shapes of ~~crystolecules~~ ==		== Shapes of microcomponents ==

	In the simplest case one could use a '''simple cube as delimiting base shape'''. <br>		In the simplest case one could use a '''simple cube as delimiting base shape'''. <br>

Apm: /* External links: */ details

2023-05-28T12:15:24Z

External links:: details

← Older revision		Revision as of 14:15, 28 May 2023
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	* One possible small set of bodies that fill space and can create flat surfaces by George W. Hart [http://www.georgehart.com/rp/FCC.html]		* One possible small set of bodies that fill space and can create flat surfaces by George W. Hart [http://www.georgehart.com/rp/FCC.html]
	'''Wikipedia:'''		'''Wikipedia:'''
	* [https://en.wikipedia.org/wiki/Close_packing Close packing] fcc and hcp do that but not ~~bcc~~		* [https://en.wikipedia.org/wiki/Close_packing Close packing] fcc and hcp do close packing but bcc does not <br> fcp & hcp is easy to mix (across a common defined z-axis) in fact in natural [[moissanite]] crystal structures do form such a mix. <br>Neither ABAB hcp hexagonal nor ABCABC bcc cubic but a mix. <br>In diamond that would mean a mix with [[lonsdaleite]] but this does not occur naturally.


	[[Category:Technology level III]]		[[Category:Technology level III]]
	[[Category:Site specific definitions]]		[[Category:Site specific definitions]]

Apm: /* External links: */

2023-05-28T12:09:38Z

External links:

← Older revision		Revision as of 14:09, 28 May 2023
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	* Customizable Crystallographic Building Block [http://www.thingiverse.com/thing:409443]		* Customizable Crystallographic Building Block [http://www.thingiverse.com/thing:409443]
	* One possible small set of bodies that fill space and can create flat surfaces by George W. Hart [http://www.georgehart.com/rp/FCC.html]		* One possible small set of bodies that fill space and can create flat surfaces by George W. Hart [http://www.georgehart.com/rp/FCC.html]
	Wikipedia:		'''Wikipedia:'''
	* [https://en.wikipedia.org/wiki/Close_packing Close packing] fcc and hcp do that but not bcc		* [https://en.wikipedia.org/wiki/Close_packing Close packing] fcc and hcp do that but not bcc

Apm: /* External links: */ added wikipedia page on close packing

2023-05-28T12:09:25Z

External links:: added wikipedia page on close packing

← Older revision		Revision as of 14:09, 28 May 2023
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	* Customizable Crystallographic Building Block [http://www.thingiverse.com/thing:409443]		* Customizable Crystallographic Building Block [http://www.thingiverse.com/thing:409443]
	* One possible small set of bodies that fill space and can create flat surfaces by George W. Hart [http://www.georgehart.com/rp/FCC.html]		* One possible small set of bodies that fill space and can create flat surfaces by George W. Hart [http://www.georgehart.com/rp/FCC.html]
			Wikipedia:
			* [https://en.wikipedia.org/wiki/Close_packing Close packing] fcc and hcp do that but not bcc


	[[Category:Technology level III]]		[[Category:Technology level III]]
	[[Category:Site specific definitions]]		[[Category:Site specific definitions]]

Apm: /* Transitions between the most basic polyhedra related to bcc, fcc, and hcp crystal structures */

2023-05-28T12:06:55Z

Transitions between the most basic polyhedra related to bcc, fcc, and hcp crystal structures

← Older revision		Revision as of 14:06, 28 May 2023
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	* and many many more ...		* and many many more ...

	=== Transitions between the most basic polyhedra related to bcc, fcc, and hcp crystal structures ===		=== Transitions between the most basic polyhedra (related to bcc, fcc, and hcp crystal structures) ===

	Transitions from rhombic dodecahedra (fcc WS-cell) to trapezo-rhombic dodecahedra (hcp WS-cell) and vice-versa are trivial in the natural directions. <br>		Transitions from rhombic dodecahedra (fcc WS-cell) to trapezo-rhombic dodecahedra (hcp WS-cell) and vice-versa are trivial in the natural directions. <br>

Apm: /* A word on the octet truss */ simplified, clarified

2023-05-28T12:04:31Z

A word on the octet truss: simplified, clarified

← Older revision		Revision as of 14:04, 28 May 2023
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	=== A word on the octet truss ===		=== A word on the octet truss ===

	~~There~~'~~s a relation of microcomponents with~~ rhombic dodecahedron shape ~~(fcc WS-cell) or <br>~~		'''The rhombic dodecahedron shape is special in having all its faces normal to the struts of the octet truss (110 direction).''' <br>
	~~microcomponents with~~ faces normal to 110 ~~miller index directions~~. <br>
	For details see page: [[Octet truss]]		For details see page: [[Octet truss]]

Apm: /* Shapes of crystolecules */ more linebreaks

2023-05-28T11:59:58Z

Shapes of crystolecules: more linebreaks

← Older revision		Revision as of 13:59, 28 May 2023
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	Examples for crystal structure derived shapes:		Examples for crystal structure derived shapes:
	* [http://en.wikipedia.org/wiki/Weaire%E2%80%93Phelan_structure Weaire–Phelan structure] - structure with the least surface area (yet unproven)		* [http://en.wikipedia.org/wiki/Weaire%E2%80%93Phelan_structure Weaire–Phelan structure] - structure with the least surface area (yet unproven)
	* base cells for quasicrystals with 5,7,9,10,11,... fold rotation symmetries; Symmetric rods with a single global rotation axis can be built. Spacefills can be generated either by straightforward projection from higher dimensional space by subdivision rules or by potentially difficult puzzling. They may have interesting mechanical properties.		* base cells for quasicrystals with 5,7,9,10,11,... fold rotation symmetries; Symmetric rods with a single global rotation axis can be built. <br>Spacefills can be generated either by straightforward projection from higher dimensional space by subdivision rules or by potentially difficult puzzling. <br>They may have interesting mechanical properties.

	'''Further shapes of practical interest are:'''		'''Further shapes of practical interest are:'''