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"TWS Garrison" <tgarrisBASSo@ISmath.BESTpurdue.edu> skrev i meddelandet
news:Pine.GSO.4.44.0205131815020.21415-100000@banach.math.purdue.edu...
>
> Acceptable -- meets the minimum standards for inclusion in the
> library (and a more accurate version will not break models made
> with this)
I think this is a very important point! As soon as a part has the right
orientation, zero point and outer dimensions, it can be _used_ for building.
A refined version will (sometimes) make everything look better, but will not
break already built models.
What more do you need to _accept_ a part?
Isn't the main reason for new parts that we want to use them for building?
Working with Coordinate Measuring Machines with an accuracy around 0.002 mm
has taught me that being _very_ accurate is very seldom needed, and always
expensive.
Or to quote a book ("The soul of a new machine" ?) from memory:
"Everything that's worth doing, is _not_ worth doing well", sometimes 'good
enough' is good enough.
--
Anders Isaksson, Sweden
BlockCAD: http://user.tninet.se/~hbh828t/proglego.htm
Gallery: http://user.tninet.se/~hbh828t/gallery/index.htm
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