I'm designing two boards that'll always be used together. I'd like to place them both on a panel and break them apart after manufacturing.
I found a document on PCB CAD Design Guidelines that explains breakaway tabs and lists guidelines for their design.
Board assemblies can be de-tabbed using perforated breakaway tabs, v-grooves breakaway tabs, or hand-cutting with a de-tabbing tool.
However, how would I indicate break away tabs in the CAD file? For the perforated tabs, I could add through-holes in a line (although I hope there's a more standardized method), but I'm not sure how to indicate v-grooves.
Also, what concerns should I be aware of with breakaway tabs?