The case design I have so far looks like this: http://downloads.qi-hardware.com/people/werner/anelok/tmp/case-interim/render.png
The big yellow rectangle is the polycarbonate "glass". Underneath it are OLED panel and the sub-PCB with LED and slider. Additional details like FPC, USB connector, battery, and the mounting holes for the screws can also be seen. The toroidal lanyard hole is in the upper left corner. The overall design is quite similar to what I've shown before, but there are two noteworthy differences: - the case has grown to 52.0 x 45.25 x 14.0 mm = 32.94 ccm - I moved the memory card holder such that it ejects (again) into the battery bay A closer look - first, the bottom half: http://downloads.qi-hardware.com/people/werner/anelok/tmp/case-interim/bottom.png http://downloads.qi-hardware.com/people/werner/anelok/tmp/case-interim/bottom.stl This part is quite simple: left to right, there is half of the battery holder, with a cut-out in the middle for the memory card, then the barrels into which the screws (length 8.0 mm) go, and then three lugs (or whatever one would call such things) that hold the bottom half in place at the thin side of the case. The top half is more complex: http://downloads.qi-hardware.com/people/werner/anelok/tmp/case-interim/top.png http://downloads.qi-hardware.com/people/werner/anelok/tmp/case-interim/top.stl There is a cut-out for the head of each screw, and the side wall is thickened correspondingly to mantain minimum wall thickness (1.5 mm). There are various "ring-shaped" cut-outs around the PCBs and also around the panel. They define the horizontal position of these parts and, in the case of the PCBs, they also constrain vertical movement in one direction. The main PCB is supported by little ramps that should snap under it when inserted. I.e., the PCB shouldn't fall out when opening the case to replace the battery. The FreeCAD Python script that generates everything is here: https://gitlab.com/anelok/anelok/blob/master/me3/case.py Next: things I don't like. - Werner _______________________________________________ Qi Hardware Discussion List Mail to list (members only): [email protected] Subscribe or Unsubscribe: http://lists.en.qi-hardware.com/mailman/listinfo/discussion
