[Cryptech Core] Alpha rev.03 daughterboard mechanics

[Peter Stuge]

Peter Stuge wrote:
> Bottom wall thickness is (30.51 - 27.51) / 2 = 1.5mm
..
> Distance from outside to third slot bottom is 1.5+5.69+2+1.5+2+1.5 = 14.19mm
> (Panel PDF says 14.1mm)
> 
> 14.19 + 1.6 = 15.79, so top side of PCB position 15.8mm is good.

The 15.79 is relative to bottom of panel == outside of bottom wall,
ie. it includes the bottom wall.


> Remaining distance to inside of lid is 27.51 - 15.79 = 11.72mm

Meaning that I made an error here, with 15.79 including 1.5mm bottom wall,
because 27.51 is the *inner* height.

Correct distance from top of Alpha PCB to inside of top wall is
27.51 - (15.79-1.5) = 13.22mm

So there's 1.5mm more space both above Alpha header plastic (10.68mm) and
from top of my PCB to inside of top wall (1.8mm) than I thought.

Sweet - a comfortable fit.


//Peter