[Hplusroadmap] Fwd: [RAS] CNC Machine

[Evgeny Egorochkin]

В сообщении от Saturday 07 June 2008 05:16:28 Antonio Marcos написал(а):
> >You're confusing completely different things:
> >Evolution of knowledge and evolution of open hardware
>
> I cant find the video on TED, it has very crappy search features, a tag
> cloud would help enourmously.. but sure, tools cant reproduce themselves
> (yet =] ) much less evolve, hence, ultimately, its a knowledge evolution..
> but thats not what i meant, because you could then say its dna evolving,
> not your arm... dont know if this analogy is a good one, but the case is
> that we can think of tools in evolutionary terms.
>
> >There's nothing to invent here. Most of technologies used in
> manufacturing >are quite old and not secret by any means. So why not use
> the best available >technology from the start?
>
> dunno, maybe they are under a "monopoly" , too expensive for individuals,
> or meant to produce large quantities... its hard to have the tools to mold
> metal @ home, its much more common to "mold" wood.. so i can just buy , or
> get the wood and make it, then mine minerals, burn them to high
> temperatures and mold.. or order the piece I want, which would normally be
> expensive.

I meant use the technology that's *actually* availble to a single individual. 
Of course some tech is out of reach even if it exists and is not secret.

> >The question is: what bottlenecks do we have? Which parts are hard to
> >manufacture and expensive at the same time?
>
> Yes.. i think thats the question.. =] i cant see why this project wouldnt
> reduce immensely the costs..

Right, but saving on the metal frame isn't a good idea, because the remaining 
parts stay the same but you lose a great deal of precision.

> >Motors... you're out of luck.
> >Bearings? Forget it. You can only try to use as small quantity as
> possible.
>
> Then maybe we would have to invent new tech here =/ hard..

But possible. Not invent as much as adapt existing tech.

> >so if you make a part for a machine, put it into the machine, make
> another >part and put it in, eventually replacing all parts, you get a
> machine of >lower quality. Do it several times and you end up with a
> *pile of junk* :(
>
> I see your point =] indeed.. 
>
> >Oh and someone's working on fixing this. *wink*
>
> links?! =]

As soon as I have *practical* results.

> >Didn't mean to discourage anyone. Didn't claim it was a bad project
> >either.
>
> sure, i was just praising it =]
>
> >Pointing out shortcoming may be unpleasant, but it's the first step
> >required to actually address them. We don't want press releases, hype,
> whatever. We >want stuff that actually works.
>
> exactly, i often look for criticism to me for exactly this reason..
> (which people typically avoids, and also avoid doing,
>  i normally have to go out of my way to make people do it, kinda like the
> "fight club" film, genius movie,  have you seen it? im mentioning the
> part he sends people to make fights all around, and say people tend to
> avoid conflict)

Seen it but don't remember anything :)

-- Evgeny