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March 2007

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Subject:
From:
"McGlaughlin, Jeffrey A" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, McGlaughlin, Jeffrey A
Date:
Thu, 1 Mar 2007 09:02:01 -0500
Content-Type:
text/plain
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text/plain (61 lines)
 
As a matter of practice we try to place all of the polarized components
with the same orientation for two reasons. First 80%+ of our board are
hand assembled and this helps with assembler accuracy. And second this
makes trouble shooting that one-or-two of a kind assembly much quicker.
The reminder our assembly techs always give us is "You only have to
design it once, but I have to build it/trouble shoot it/repair it ___
times." 

Jeffrey McGlaughlin, CID 
Engineering Designer 
Battelle 
505 King Avenue 
Columbus Ohio 43201-2693 
(614)424-7582 Phone 
(614)458-7582 Fax 


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Green, Mike
Sent: Wednesday, February 28, 2007 8:59 PM
To: [log in to unmask]
Subject: [TN] Component Orientation Survey

When you design boards, do you:
-lay out similar polar components oriented in the same direction for
ease of manufacture regardless of the shortest routing
or 
-lay out each component oriented in the best position for routing
regardless of the orientation of other similar parts?

We have a difference of opinion as to which is more prevalent practice.


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