huangyhg

a lesson on tolerances...
preface: not quite a structural topic but a construction one so it seems like it fits here...
something is not right with this story.
- if this was important the cable could have been procurred in less time.
- 2/100th of an inch =slightly more than 1/64th of an inch off. to mitigate the problem its hard to believe they couldn't have made use of the larger cable.
- its a quasi government job ie results not as important as process
these, of course, are opinion, but this story has me slightly upset.
as pointed out in one of the comments... this story needs a followup written by someone who knows the right questions to ask.
i think the federal government should step in and bail them out.

a prime example of measuring with a micrometer, marking with a crayon, and cutting with an axe.
incompatible tolerances. absurd.
you do that too?
mike mccann
mmc engineering
mike...you've had almost as much to drink as i have!....you still have a couple of hours to make it up...go brother.
when cadd first got started years ago, we had dimensoned drawings from architects showing something like 32'-6 27/32". personally, i have a hard time reading a 1/16" on a tape measure. agree with ron
why on earth would you cut a trench/groove to that tight a tolerance. wouldn't you just cut a 3" trench/groove and be done with it.
it's a cable at the end of the day.
the article said the "trench" was lined with steel. sounds like a fabricated steel tray rather than a trench. but the journalist wouldn't know the difference.
either way it's a construction job and not a precise machined component. .02 is closer to 1/64th.

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