Hi Jon:

Several of my parts suppliers have had good success in wave soldering when
they rotate the board to about 45 degrees.  They generally do this to
overcome poor design for manufacturing.  I would suggest that you experiment
to find the best angle, but from what I have seen, the 45 degree setting
provides the best angle.  Good luck.

Hank
----- Original Message -----
From: Jon Moore <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, February 13, 2000 8:57 PM
Subject: Re: [TN] wave soldering - board rotation


> In a message dated 1/27/00 3:26:59 PM US Eastern Standard Time,
> [log in to unmask] writes:
>
> << Has anyone out in wave soldering land tried using a wave soldering
fixture
>  that allows you to change the rotation of the board so that the edge of
the
>  board isn't parallel to the conveyor?
>
>  I'm told that rotating the board slightly (say 5 degrees - not 90
degrees!)
>  can reduce the
>  occurrence of solder skips on SMT chips (caps and resistors).  Any
>  experience out there to confirm or deny this?
>   >>
> I have tried such a fixture and had relatively good success.  Part of the
> cause was poor design layout, yet this was a mature product with no budget
> available for a new layout.  EMC makes a standard wave solder pallet with
a
> rotatable inner piece that can be set to any angle, and it worked well.
>
> Jon Moore
>
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