[Hplusroadmap] Fwd: [RAS] CNC Machine

[Evgeny Egorochkin]

Bryan,

В сообщении от Tuesday 10 June 2008 03:10:50 Bryan Bishop написал(а):
> > Tech bottlenecks can be worked around by minimizing the use of the
> > offending technologies or by using [usually overlooked] alternatives.
>
> And particularly another bright method is the use of *overlapping*
> technologies so that you do not increase material or process
> requirements unduly.

Not sure what you mean by overlapping technologies. 


> As soon as you add a new material into the entire 
> system, you have to refactor significantly. Unless you're not going for
> total self-replication.

It makes sense to obtain a simplest possible but complete stack of 
technologies. Complete in the sense of being able to do everything. Maybe not 
as cheap as commercial manufacturing, not as fast. This of course means you 
need far less tech processes than commercial industry and can use cheaper 
alternatives.

In fact if you look at the list of tech processes offered by custom 
manufacturing companies, you're going to find something like 100-200 
different technologies offered. Many of them are overlap to  a such degree 
that you can discard no less than 80%. What's left is enough to get a 
clanking self-replicator. So yes, we're going for self-replication. And yes 
resource extraction can be tackled too by recycling/mining/whatever. And it's 
easier than it seems because there are again lots of similar processes. eg Ti 
and Zr are obtained exactly the same way.

--Evgeny