[sdiy] Parts going out of module panel

[Matthias Herrmann]

> Andre Majorel
> Sent: Thursday, May 10, 2018 10:40 PM
> 
> On 2018-05-09 05:46 +0000, Matthias Herrmann wrote:
> 
> > To my knowledge the ???oval holes??? are actually meant to be double-D
> > holes. They where originally used in the Eurocard rack-cases to take
> > plastic or metal screw holders which would snap into them. If so they
> > would have nothing to do with non-standard panel widths or different
> > modular standards. The distance of the mounting holes is clearly
> > defined, the tolerances of panel widths just depend on the
> > manufacturers capability.
> >
<snip>
> 
> Sounds like you're right. According to [1], the shape of the holes is the
> intersection of a disc 5.9 mm in diameter with a horizontal band 3.3 mm tall.
> 
>     _______
>    /       \  ^
>   |         | | 3.3
>    \_______/  v
> 
>   <--------->
>       5.9
> 
> For my own use, I never bothered with that and just made round holes, large
> enough for the usual M2.5 screws plus slop.

Here the same, however, I have large enough for even the M3 that Doepfer uses ;)