Newsgroups: comp.robotics,sci.electronics
Path: cantaloupe.srv.cs.cmu.edu!das-news2.harvard.edu!news2.near.net!howland.reston.ans.net!swrinde!sgiblab!cs.uoregon.edu!reuter.cse.ogi.edu!hp-cv!hp-pcd!hpcvsnz!tomb
From: tomb@lsid.hp.com (Tom Bruhns)
Subject: Re: Looking for small high torque DC motors
Sender: news@hpcvsnz.cv.hp.com (News )
Message-ID: <D16C5o.G0o@hpcvsnz.cv.hp.com>
Date: Wed, 21 Dec 1994 18:46:36 GMT
References: <3d2sk9$b5b@charnel.ecst.CSUChico.EDU>
Nntp-Posting-Host: hplsnb.lsid.hp.com
Organization: Hewlett-Packard
X-Newsreader: TIN [version 1.1 PL9.4]
Followup-To: comp.robotics,sci.electronics
Lines: 16
Xref: glinda.oz.cs.cmu.edu comp.robotics:16489 sci.electronics:112600

Steven J. Faulkner (sj@ecst.csuchico.edu) wrote:
: to the 250RPM I want). I can't remember or find the conversion from oz-in
: to ft-lb. Can anyone tell me this? Cost, reliability, and weight are all

    oz-in  * 1foot  * 1pound
    ------------------------
       12inches * 16ounces

The inches and ounces cancel top to bottom and you are left with ft-lbs.

Any quantity multiplied by "1" is still the same quantity.  Since 1 foot
equals 12 inches,  1foot/12inches equals 1.  This is a very fundamental
and valuable concept to learn.  It will save you learning hundereds of
different conversion factors which can be broken down into smaller pieces.
Same thing works for English-metric conversions:  2.54cm/1inch = 1.

