[dsvf]

Andrew Zonenberg posted a Twitter thread a year or two ago where he fixed a missing PCB trace some layers down a PCB, with a stereo microscope, precision mill and very steady hands.

Edit: here's the thread. It's a 6 layer PCB with a short on L5 that needs to be fixed from the L1 side.

https://xcancel.com/azonenberg/status/1468825231225540611#m

[Vexs]

Holy cow! I've been pushing around a TQFP48 tonight and thought I was pretty good.

[Gracana]

If you enjoy that sort of thing, check out this guy's videos. Lots of trace repairs (including below the surface), pad replacements, etc. Quite impressive to see it done.

https://www.youtube.com/@northwestrepair

[dmbche]

10/10 read