I am trying to get some PCB’s serialized using a laser.
I’ve been doing a lot of searching for methods of marking PCB’s from lasers. Most machines are expensive and I cant find much of open sourceness of the topic.
The PCB’s I would be marking would be made of FR-4, any solder mask but white, and would probably be marking an area of 10x50mm.
The questions I have are:
- Should I have a large copper pad under the area that will be marked? or make sure it is just the substrate.
- Should I treat the material like glass? or like plastic?
- is a close to stock K40 capable of doing such a thing?
What kind of setup/ settings should I start with?
Etching/marking/engraving seem to be all appropriate for my purposes.
Thanks in advance!