In case anyone missed my meaning on "tower of Babel" let me regurgitate
the story.
Bunch of folks decide to build tower into heaven. God gets pissed and
causes them to speak in different tongues so they can't talk to each
other, tower project fails.
I was suggesting the similarity to our situation with CAD files in
that if we are not careful the different file versions will prevent us
from talking to each other and therefore prevent us from getting to the
heavens.
As for my little poem, I was trying to bring up issues I think we will
face in exchanging drawings. That is other problems besides legal. I don't
think these will be a big deal inside ERPS, folks comfortably work in
mixed systems of measurement all the time here. The problem will come
when interfacing with the world in this case represented by contractors.
It cost more to send non standard drawings to the machine shop. Don't ever
send mixed metric and inch measurements to a shop! Matter of fact check
ahead of time on how comfortable they are with metric, you may want to
convert instead of having them do so. Tolerencing won't be a big deal as
long as machines are one of hand builds. It will be a problem if you have
a couple of machines in service and want to maintain a parts inventory.
Tolerencing could also be a problem if you build a big machine that
requires distributed manufacture, but that seems a little way down the
road.
Randall Clague wrote:
> On Tue, 03 Sep 2002 23:50:02 -0400, Alex Fraser <[EMAIL PROTECTED]>
> wrote:
>
> >be able to avoid a tower of Babel situation.
>
> Given that ERPS vehicles don't use towers (anything past Spike won't
> even use a rail), and the civilian pilot who kept asking for
> permission to take off during XCOR's abort, in spite of the tower
> telling him to maintain radio silence, it probably ought to be called
> a Tower of Babble situation.
Besides a "pun pot" we apparently need a segway fund ;-)
>
>
> Speaking of babble, the ERPS room party at WorldCon apparently went
> very well. I missed most of it (I had a good reason). I do apologize
> for Bruce popping all those balloons. If you ever see a Boeing
> engineer named Bruce blowing up balloons, take them away from him; he
> is up to no good.
>
> >Geometric tolerencing?
> >Metric or inch?
> >Custom and practice,
> >will do in a pinch!
>
> Measure with a micrometer,
> Mark with chalk,
> Cut with an axe.
>
> ...But if you're building your rockets that way, you're probably in
> Russia. :-)
>
> -R
>
> --
> "Sutton is the beginning of wisdom -
> but only the beginning."
> -- Jeff Greason
--
>>>>>>>>>>>>>>>>----<<<<<<<<<<<<<<<<<
........ Alex Fraser N3DER .........
......... [EMAIL PROTECTED] .......
[~]_>^</\-[~]_>^</\-[~]_>^</\-[~]_>^<
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