Laser cutter parameters engraving

These are the parameters to use when engraving various materials with my K40 laser. They have been discovered by trial and error.

Stamp rubber (2.3 mm)

  • Power: 75%
  • Speed: 175 mm/s
  • Air: yes
  • Masking: yes

bought from here

Anodized aluminium keychain bottle opener

  • Power: 70%
  • Speed: 300 mm/s
  • Air: no
  • Masking: no

potential source