Use the MFR Laser Drill (way OP in an awesome way for sure)? Always wonder what laser focus to use to get what you want? Take a look here for the answer. :
Laser Marking and DPM Code Quality Implications - Blog | Cognex
MineFactory Reloaded - Laser Drills - YouTube
Experimental setup of designed L-band EDF laser with compound-ring... | Download Scientific Diagram
Laser Drill - Feed The Beast Wiki
Fotona Medical Laser Report Fidelis Er:YAG Laser Application Notes Version 1.0 | eBay
MFR19-openscan-laser-cut-prototype | Hackaday
Laser Base - Official Feed The Beast Wiki
Test on MFR Laser Drill RF consumption : r/feedthebeast