I use a 2.3W diode laser to do the ceramic tile engravings. I have more powerful diode lasers and a 50W CO2 laser… and they simply do not get the quality result I get with the 2.3W Eleksmaker laser. The process can be “overpowered” so easily that a few speed/power grid tests are pretty much vital to determine the best speed and power to use for a given material and laser.
@Bulldog (Nicky Norton) is the authority on the NWT method. He is a denizen here and he’s left his recipes in numerous places. I’d recommend this particular one to study closely as it gives tips and instruction for both CO2 and diode lasers…
I know there are a few folks getting decent results with higher powered diode and CO2 lasers… hopefully one of them will chime in and be able to help. Good luck.
– David