[sdiy] modular rack systems?

[Andre Majorel]

On 2011-01-05 10:06 -0800, Barry Klein wrote:

> 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?

There is very little vertical play with either captive nuts or
tapped strips. A few tenths of a mm. None is needed since the
mounting holes on a eurorack format panel have a well-defined
vertical pitch (122.5 mm).

It's the *horizontal* play of captive nuts that is useful. And
only when faced with non-standard panels. For standard eurorack
panels, all mounting holes are .1" + k x .2" from the edges so a
regular tapped strip (holes .1" from an end and then every .2")
covers all possible positions.

Are you looking for rack rails to handle both eurorack and
taller formats like Moog and MOTM ? I have no idea how you'd do
that.

> 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...)

There must be a standard somewhere if you can afford it but all
I know is from measuring existing racks and squinting at
pixellated technical drawings in APW/Elma/Schroff/Vero/etc.
catalogues.

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