New to laser stuff, I purchased a K40 and using Whisperer to mark steel.
I tried a couple different moly lubes with no luck so I bought commercial product from Brilliance Laser Inks and still no luck. I tried their powder for metals, mixed it 2 parts powder 1 part 99% rubbing alcohol as directed. Still nothing, even at 95%+ power and speed as low as 20mm/s it will not mark, it burns the marking coating but nothing sticks to the steel and just rubs off with paper towel.
For sure the metal I’m trying can be marked with C02 since I had the same metal marked by someone else, they used a spray of some kind, it was white.
The laser seems to work since it can cut through wood, but I’ve tried everything to mark steel, different kinds, with no luck. I’m out of ideas.
Any help would be appreciated.