I've found that the scrap developed in this sort of part is pointless if
wave soldering is required anyways. We used only two of the pins for
retention (recommended press-fit), allowing the wave to do the rest of the
work (oversize).

This was in higher power connector, where a damned worm-screw or vise was
necessary to get insertion half the time. Manual, expensive and error-prone.
Only really justified in no-solder assembly (wish on!).

RL

----- Original Message -----
From: Dee Stover <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, February 26, 2002 9:16 AM
Subject: [TN] input on pressing cPCI connectors


> We have recently designed a 6U board that has the J1 & J2 compact PCI
> connectors on it.  I used the manufacturers spec for the hole sizes and
the
> board shop fabricated within the tolerance and specification.  The problem
> is we can not get the connectors to actually press into the holes.
>
> I would appreciate input from anyone who has some experience with these
> connectors!
>
> My understanding of the press tool was that it was nothing other than a
> flat piece of metal in a bench press.  Is that correct?
>
> What finished hole sizes are being used?  With all manufacturers?  I have
> noticed some dimensional differences in the drawings between Erni &
FCI/Berg.
>
> Can anyone give me an idea of what the press tools actually look like?
>
> TIA
>
>
> Dee Stover  [log in to unmask]
> Associate Technician Design
> National Optical Astronomy Observatory
> 950 N Cherry Ave
> Tucson, AZ 85719
> 520-318-8489
> FAX 520-318-8303
>
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