Difference between revisions of "Method of assembly"
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(Created page with "{{Stub}} == Self assembly == Radical Abundance: "''Let parts move at random and require each part to encounter and bind to its own special place''" If you haven't heard ab...") |
(→Stereotactic control: added link to page positional assembly) |
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| + | [[File:From-selfassembly-to-mechanosynthesis-v1.0.png|400px|thumb|right| '''The scalable vectorgraphic *.svg format of this file is available [http://apm.bplaced.net/w/index.php?title=File:From-selfassembly-to-mechanosynthesis-v1.0.svg here]''']] | ||
| − | == Self assembly == | + | == Self-assembly == |
| − | Radical Abundance: "''Let parts move at random and require each part to encounter and bind to its own special place''" | + | [[Radical Abundance]]: |
| + | "''Let parts move at random and require each part to | ||
| + | encounter and bind to its own special place''" | ||
| − | If you haven't heard about self assembly yet please consult [http://en.wikipedia.org/wiki/Self-assembly wikipedia]. <br> | + | If you haven't heard about [[self assembly]] yet please consult [http://en.wikipedia.org/wiki/Self-assembly wikipedia]. <br> |
| − | Since nano-biology uses self assembly extensively today self assembly is perceived as natural in the nanoscale although its very alien at the makroscale. | + | Since nano-biology uses self assembly extensively today (in the molecular sciences) self assembly is perceived as natural in the nanoscale although its very alien at the makroscale. |
| − | + | ||
| − | === advantages === | + | * [https://www.youtube.com/watch?v=X-8MP7g8XOE Video showing self-assembly of a thumb sized a virus model in a glass jar] |
| + | * [https://www.youtube.com/watch?v=YbpTusoDEgA Video with two models forming at the same time] | ||
| + | |||
| + | === advantages of self-assembly === | ||
* putting things together requires '''no''' machinery | * putting things together requires '''no''' machinery | ||
| − | === disadvantages === | + | === disadvantages of self-assembly === |
* all pieces in a complex non-periodic structure need to have unique shapes like in a puzzle which makes the pieces bigger | * all pieces in a complex non-periodic structure need to have unique shapes like in a puzzle which makes the pieces bigger | ||
| Line 23: | Line 28: | ||
== Stereotactic control == | == Stereotactic control == | ||
| − | + | See main page: [[positional assembly]] and [[mechanosynthesis]] | |
| − | + | It's the common sense method of putting things together by pick and place operations. <br> | |
| + | Like e.g. sticking sleeves on axles. | ||
| − | === disadvantages === | + | [[Radical Abundance]]: |
| + | "the ability to guide molecular assembly by guiding molecular motions ... ''move parts into place and put them together''" | ||
| + | |||
| + | Since nano-biology uses stereotactic control only in loose and somewhat hidden ways (in the molecular sciences) self assembly is perceived as rather alien in the nano-scale although it can work perfectly well. | ||
| + | |||
| + | Sidenote: Why not call it "robotic control"? ['''todo:''' link article "why I hate nanobots"] | ||
| + | Like the term "nanotechnology" the term "robot" is not well defined and can be bent a lot. | ||
| + | The term "stereotactic" comes like a quick google serch shows from brain surgery where you need everything in a global coordinate system and need to tightly constrain any shaking to the minimum - a quite fitting therm here. | ||
| + | |||
| + | === disadvantages of stereotactic control === | ||
* putting things together requires '''advanced''' machinery | * putting things together requires '''advanced''' machinery | ||
| − | === advantages === | + | === advantages of stereotactic control === |
* all pieces in a complex non-periodic structure can have identical shape and minimal size. | * all pieces in a complex non-periodic structure can have identical shape and minimal size. | ||
* all bonds can be as strong as possible | * all bonds can be as strong as possible | ||
* finished pieces can have maximally smooth seams | * finished pieces can have maximally smooth seams | ||
| + | |||
| + | == Loose stereotactic control with self assisted assembly == | ||
| + | |||
| + | It seems that to remove the sole disadvantage of stereotactic control one needs the advantages of stereotactic control. | ||
| + | (see: [[Common_misconceptions_about_atomically_precise_manufacturing#Advanced APM systems are a "castle in the sky" with no way to built them - not quite|why advanced APM systems are not a castle in the sky]]). | ||
| + | |||
| + | By combining loose stereotactic control with self-assembly one can climb an [[incremental path]] to full stereotactic control. | ||
| + | |||
| + | === Characteristics of intermediate systems === | ||
| + | |||
| + | * usage of bigger building blocks and sufficiently distinct binding sites in position and possibly shape | ||
| + | * usage of "soft machines" for the selection of the local binding site environment | ||
| + | * usage of snap in / localized self-assembly / self-centering / self-alignment / self assisted assembly | ||
| + | |||
| + | == Related == | ||
| + | |||
| + | * 1D brownian walk; ribosome; analogy to transport along microtubuli | ||
| + | * [[Mechanosynthesis]] | ||
| + | * [[Self assembly]] (and [[Self assembly without thermal motion]]) | ||
| + | * [[Positional assembly]] | ||
Latest revision as of 16:09, 28 March 2021
The scalable vectorgraphic *.svg format of this file is available here
Contents
Self-assembly
Radical Abundance: "Let parts move at random and require each part to encounter and bind to its own special place"
If you haven't heard about self assembly yet please consult wikipedia.
Since nano-biology uses self assembly extensively today (in the molecular sciences) self assembly is perceived as natural in the nanoscale although its very alien at the makroscale.
- Video showing self-assembly of a thumb sized a virus model in a glass jar
- Video with two models forming at the same time
advantages of self-assembly
- putting things together requires no machinery
disadvantages of self-assembly
- all pieces in a complex non-periodic structure need to have unique shapes like in a puzzle which makes the pieces bigger
- all bonds need to be weak such that wrong matches open up again
- finished pieces necessarily have irregular seams
These issues make design difficult. (folded polymeric chains)
Stereotactic control
See main page: positional assembly and mechanosynthesis
It's the common sense method of putting things together by pick and place operations.
Like e.g. sticking sleeves on axles.
Radical Abundance: "the ability to guide molecular assembly by guiding molecular motions ... move parts into place and put them together"
Since nano-biology uses stereotactic control only in loose and somewhat hidden ways (in the molecular sciences) self assembly is perceived as rather alien in the nano-scale although it can work perfectly well.
Sidenote: Why not call it "robotic control"? [todo: link article "why I hate nanobots"] Like the term "nanotechnology" the term "robot" is not well defined and can be bent a lot. The term "stereotactic" comes like a quick google serch shows from brain surgery where you need everything in a global coordinate system and need to tightly constrain any shaking to the minimum - a quite fitting therm here.
disadvantages of stereotactic control
- putting things together requires advanced machinery
advantages of stereotactic control
- all pieces in a complex non-periodic structure can have identical shape and minimal size.
- all bonds can be as strong as possible
- finished pieces can have maximally smooth seams
Loose stereotactic control with self assisted assembly
It seems that to remove the sole disadvantage of stereotactic control one needs the advantages of stereotactic control. (see: why advanced APM systems are not a castle in the sky).
By combining loose stereotactic control with self-assembly one can climb an incremental path to full stereotactic control.
Characteristics of intermediate systems
- usage of bigger building blocks and sufficiently distinct binding sites in position and possibly shape
- usage of "soft machines" for the selection of the local binding site environment
- usage of snap in / localized self-assembly / self-centering / self-alignment / self assisted assembly
Related
- 1D brownian walk; ribosome; analogy to transport along microtubuli
- Mechanosynthesis
- Self assembly (and Self assembly without thermal motion)
- Positional assembly
