[sdiy] modular rack systems?

[Barry Klein]

Please expand on the captive nut discussion - if one wants a rack system
that will handle all popular panel formats (irregardless of panel height)
what rack hardware is recommended?  Are you saying there is enough vertical
play with a captive nut vs captive nut track to succeed?  Are there
"gotchas" with some such horizontal rails where there is not enough vertical
nut play?
Maybe there is a faq on this subject somewhere?
Ideally I'd love to find a faq that describes this subject as well as power
requirements/buses/connectors/interconnect jack type for most formats... (or
it will be my next book perhaps...)

Barry


-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Andre Majorel
Sent: Wednesday, January 05, 2011 9:33 AM
To: synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] modular rack systems?

On 2011-01-05 08:28 -0800, Barry Klein wrote:

> I'm confused... Recently there was this youtube
> video on the tiptopaudio rack system.  It looked like
> the rails were pre-tapped.  And yet rails are commonly
> available with channels for captive nuts.  Why would
> a pretapped solution be preferable?

It's not the rails that are tapped, it's a captive strip. Think
of it as a 84-uple captive nut.

Discrete captive nuts are useful when you have oddball panels
like those from Analogue Systems where the holes are k x .2"
from the edges instead of the standard .1" + k x 2". Otherwise,
tapped strips are so much better.

I think captive nuts are a relic from the times when factories
weren't tooled to produce tapped strips cheaply like they are
now. Just for fun, I'd like to see a _Comment c'est fait_/_How
it's made_ report on a Schroff factory...

-- 
André Majorel http://www.teaser.fr/~amajorel/
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