Re: 'Simple Nanotechnology' John Mark Michelsen (jmichels@arcturus.oac.uci.edu)
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12 Mar 1996 09:06:14 -0500

On 6 Mar 1996, Joseph Strout wrote:

> > Sure. Get a bunch of TinkerToy kits and build a (manually controlled)
> > manipulator with which she can build other tinkertoy assemblies.

>.. but also felt free to design our own building blocks if
> necessary...

> way for the assembly head to get parts (perhaps a diffusion model...
> We need to figure
> how the blocks connect; they have to go together easily enough that the
> assembler does not rip itself apart forcing blocks together.

> ...have to figure out how the head grips a block, then lets go of it when
> it's properly attached.
> Any ideas?

How about liberal use of velcro on blocks of density 1 gram/cm^3 in a pool? That would take care of problems with lifting things around against gravity.

On a nanotech scale, things naturally want to stick together, which stretches the ananolgy with macroscopic replicators built of tinkertoys, which have to be forced together.

John Michelsen

[I think metaphors are being mixed here. If you're doing "machine-phase" assembly, all parts are in known positions at at times; if you're doing solution-phase mechanisms, it's not clear that robot-like manipulators are useful. --JoSH]