yes, It was exactly as I was expecting, the sides where no stresses while breaking apart are simply routed out, and the other two sides use v-cuts.drgeoff wrote: ↑Mon May 03, 2021 7:14 pmSee https://www.raspberrypi.org/blog/sony-t ... ete-lomas/ for the evidence that has been removed at some point prior to shipping.
where there are connectors that stick out, a small strip is inserted in between the v-cut sides.
Care must be taken to break out the panel into loose boards, so that there are no stresses on the PCB traces or SMT parts while breaking the v-cuts.
Especially larger ceramic capacitors could break if placed to close to a v-cut.
Also with this methods (routed edges and v-cuts) there really are no "break points", which are rows of very tiny holes at the break off points to weaken the point where the PCB's are broken off from each other. such break off points (with rows of tiny holes) are often used with cheaper PCB panels.
Below is a picture showing "break off points", and how to make sure the strips can be broken of by adding strategically placed extra break off points, on the edges of the strips. But as I said, Sony does NOT use this technique for raspberry PI's.