We consider to develope a script to output back-drill data in Expeditionpcb. I initially consider to do as following
1 first let user to select all nets which need to do backdrill for thier vias and plated-TH holes
2 secondly, get all XY data and size for the vias and plate-TH holes
3 write into a raw nc file with simple tooling assigment
4 create a user layer naming backdrilling and put special legends reprensting the diffrent finishing layers for the vias and plated-th holes
Is there a better way to do this?
Thanks in advance