Re: Tolerance in text

Subject: Re: Tolerance in text
From: eric -dot- dunn -at- ca -dot- transport -dot- bombardier -dot- com
To: "Gene Kim-Eng" <techwr -at- genek -dot- com>
Date: Wed, 22 Feb 2006 09:30:20 -0500

"Gene Kim-Eng" wrote on 02/22/2006 11:26:04 PM:
> You certainly cannot take a
> dimension from someone else's email and "imply" a tolerance such as
> "25 mm actually means 25 mm + 0.49 mm / - 0.50 mm" without knowing
> what drafting standard is in use, or you end up with incidents like
> Challenger or Hubble.

My understanding of "implied" tolerance as brought to light in this thread
was concerning rounding error. Something that should NEVER exists in
engineering drawings. Based on that definition, there is no such thing as
"implied" tolerances.

However, what Gene and Geoff are arguing are the same thing. Just from
different perspectives. One from a knowledge of engineering standards and
one from shop folklore concerning standard tolerances. No need for
disagreement folks!

Only danger is when the shop hands refuse to abandon shop folklore for
engineering demands. But, then again, shop folklore often trumps
engineering theory.

Eric L. Dunn
Senior Technical Writer


This e-mail communication (and any attachment/s) may contain confidential
or privileged information and is intended only for the individual(s) or
entity named above and to others who have been specifically authorized to
receive it. If you are not the intended recipient, please do not read,
copy, use or disclose the contents of this communication to others. Please
notify the sender that you have received this e-mail in error by reply
e-mail, and delete the e-mail subsequently.
Thank you.

Ce message (ainsi que le(s) fichier/s), transmis par courriel, peut
contenir des renseignements confidentiels ou protégés et est destiné à
l?usage exclusif du destinataire ci-dessus. Toute autre personne est par
les présentes avisée qu?il est strictement interdit de le diffuser, le
distribuer ou le reproduire. Si vous l?avez reçu par inadvertance,
veuillez nous en aviser et détruire ce message.


WebWorks ePublisher Pro for Word features support for every major Help
format plus PDF, HTML and more. Flexible, precise, and efficient content
delivery. Try it today!.

Doc-To-Help includes a one-click RoboHelp project converter. It's that easy. Watch the demo at

You are currently subscribed to TECHWR-L as archive -at- infoinfocus -dot- com -dot-

To unsubscribe send a blank email to
techwr-l-unsubscribe -at- lists -dot- techwr-l -dot- com
or visit

To subscribe, send a blank email to techwr-l-join -at- lists -dot- techwr-l -dot- com

Send administrative questions to lisa -at- techwr-l -dot- com -dot- Visit for more resources and info.


Re: Tolerance in text: From: Gene Kim-Eng

Previous by Author: RE: Tolerance in text
Next by Author: RE: Tolerance in text
Previous by Thread: RE: Tolerance in text
Next by Thread: Re: Tolerance in text

What this post helpful? Share it with friends and colleagues:

Sponsored Ads