wildcard week
Working on my final project, I came close to the limits of the traditional PCB milling process; both in terms of resolution (fine details for a 0.6mm pitch OLED FFC connector) and in board size (warping becomes a problem somewhere between 50 and 150mm of length).
To cope with these issues, I experimented with two alternate PCB prototyping methods. Since I expect these to be useful to others, I documented them separately as informative pages rather than logs: