On 02/04/17 11:27, Paul Boddie wrote:
On Sunday 2. April 2017 23.05.25 Luke Kenneth Casson Leighton wrote:
ok so i've created corner-pieces which will need to be 3d-printed, they contain slots for the PCB as well as for upright 1.5mm 3-ply sides. the far corner near the PCMCIA eject button needs some work / rethinking because there's a cut-out in the PCB.
the cut-out is basically too far back, and that's lack of iterations / planning on my part - i'm not doing another revision of the microdesktop PCB now, not at this stage, so i'll work something out.
This should be the following, I think:
http://hands.com/~lkcl/eoma/kde_tablet/3dcase/microdesktop_3.png
It comes in seconds after I ask. Oh, well.
That, or an elegantized version thereof, will definitely work. Dealing with wood movement is the original reason for frame and panel cabinet doors. The long grain top and bottom don't move perceptibly, keeping the door from being ugly small in the winter, and inoperable in the summer.
As I noted, the stacked ply may not be quite such an issue after all, if you want to keep that. It's taken me a while to wrap my head around just how /small/ and /simple/ the microdesktop really is, with (AFAICT) the single PCB being held only by the edges of the PCB. In this case, the Z-movement won't affect the PCB and components mounted to it, so the only thing that remains is to leave enough space to allow for possible dry climate shrinkage.
Tor
:-)
Paul