=== Acrylic ===
8-20mm/s, engraving at 20% 500mm/s
=== Rubber ===
# Focus laser at 6mm higher than usual (use two pieces of 3mm plexi)
# Engrave at 200mm/s, 20% and 0.2 unilat
# Do 6 passes total, changing the unilaterism between x and y for an even surface
# Clean surface with compressed air to remove the rubber dust between passes
# Stick rubber cut part onto a support material for when you want to make a stamp
=== Others ===