I'm trying to engrave bamboo slates. According to my experience, low power and low speed produce darker and superficial engraved areas. I'm trying to use P2S at 2% of power and 32mm/s speed, but the laser doen't engrave. I had to place 5% minimum power, that produce deep and dirty engraved areas. I already reduced minimum power in settings of machine to 1%, but it still doesn't engrave below 5%. is this a known limit i cannot modify, as you know? Thanks to everyone.

Paolo