> > > Occam opines:
> > > a) The part left out is still by far the most probable and preferred
> > cause.
> > > or
> > > b) The parts are breaking impossibly despite everything.
> > > What say you?

> Late to the party. =A0Donning philosopher's hat, reflecting on experience=
..

You've done better than most. Justin and some others also.

Philosophers hat was what I was looking for as an exercise in problem
handling BUT what I got was largely accusations of stupidity,
laziness, wanting my work done for me, not giving enough info (choose
any 4)(all that from one person in one case - guess who :-) ) etc.

The term "impossibly" above, taken in context of my initial query
(where I did not use that word) was of course shorthand for "if this
part IS breaking there must be  a good reason, but we surely can't yet
see what it is".

> The impossible scenario is the likely one, because "impossible" usually d=
oes
> not reflect on the design/construction of the item. =A0"Impossible" is us=
ually
> a reflection on the guy who simply did not realize that one additional
> thing....That being the thing that happens for a second time after all th=
e
> reports are written and the committees have met. =A0As soon as you change=
 from
> "it's impossible" to "now I've seen it again, there has to be an
> explanation, you get..."
> "Oh, NOW I see what's happening.... Of course!"

Indeed.
It was 'b', as I also decided was most likely (fwiw).
I found that a easier to do as it wasn't my design so I didn't have
the same investment in wanting to be sure that there was no problem
with the design.

Can't go into details, but a very minor departure from best design
practice allowed  a large force to be applied to a small part during
manufacture leaving it walking wounded. The problem is both easily
fixed and the results are easily worked around, so all is OK, but an
interesting lesson.

I must try not to say "impossible" when I mean "apparently impossible" :-)

     Russell

--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.