[sdiy] PCB size for euro-rack format

[Seb Francis]

Hi,

Thanks for the helpful replies about this (and ignoring the troll ;)

I will make the PCB 100mm x <160mm then.  Should be no problem to get < 
160mm - a quick try last night with the auto-placer on a 105x120mm board 
fitted all the components with lots of space to spare (the joys of SMD!)

Presumably mounting hole positioning is not critical as a bracket can be 
made up as necessary.  Or are there standards for this kind of thing?  I 
plan to have 6x M3 mounting holes - 1 in each corner, and a further 2 on 
the long edges, 40mm down from the panel end.  So the panel could be 
mounted either 'deep' or 'wide' using the appropriate 4 holes.


By the way, regarding this comment of Laurie's:
>
>
> PS when referring to panel space I am actually referring to the space 
> on the back of the panel where the components will be mounted. Items 
> such as pots require more panel space than switches and a pot cannot 
> extend in to the rail area or beyond the edge of the panel. In 
> principle, Frackrack and eurorack have almost the same amount of 
> `printable' panel space on the front but differing `working' space 
> behind. 


Not quite the same 'printable' panel space - the Doepfer docs say their 
front panels are actually 128.5mm high as they fit within a rim of the 
mounting rails.  The Blacet modules I have here have panels exactly 3U 
(133.4mm) high.

Seb