Klarinet Archive - Posting 000359.txt from 1997/10

From: Jrykorten@-----.com
Subj: Re: Manufacturing Tolerances
Date: Fri, 10 Oct 1997 16:23:53 -0400

Dee,

You neglect to say what price you are charging for your equipment. A
tolerance of .002" on a $5 part is reasonable. I manufacture a whole body
plethysmograph for neonates that maintains .001" around an object the size of
a large suitcase. This product sells for $6000.

A Clarinet sells for $2000 (nominal) and is out of round by .004" is clearly
not acceptable.

Jerry Korten
NYC

In a message dated 97-10-09 00:12:53 EDT, Dee write:

<<
I happen to be an engineer for a manufacturer of custom designed heat
exchangers. If we want to keep the manufacturing costs reasonable, it is
absolutely necessary to allow reasonable manufacturing variations.
Regardless of
the material, a diameter that has a nominal diameter of 0.574" that has a
range
of 0.571" to 0.575" is EXCELLENT manufacturing control. This is only
a variation of two thousandths of an inch from nominal. If they tried to
reduce
this variation further, costs would skyrocket and none of us on this list
could
afford the product.

Dee Hays
Canton, SD
deerich@-----.net
>>