Universal Laser Systems SuperSpeed-660, Safety, Installation, Operation, And Basic Maintenance Manual

Page: 53 / 84

MATERIAL SETTINGS GUIDE
Section 5-9
BRASS - PAINTED
RASTER ENGRAVING
LASER WATTAGE POWER SPEED PPI PASS DEPTH
25 29 100 500 1 .001”
30 27 100 500 1 .001”
35 25 100 500 1 .001”
40 23 100 500 1 .001”
45 21 100 500 1 .001”
50 19 100 500 1 .001”
55 17 100 500 1 .001”
60 15 100 500 1 .001”
VECTOR ENGRAVING
LASER WATTAGE POWER SPEED PPI PASS DEPTH
25 6 4.0 1000 1 .001”
30 5 4.0 1000 1 .001”
35 4 4.0 1000 1 .001”
40 3 4.0 1000 1 .001”
45 3 4.0 1000 1 .001”
50 3 4.0 1000 1 .001”
55 2 4.0 1000 1 .001”
60 2 4.0 1000 1 .001”
COMMENTS
The manufacturing process for coated brass varies from one vendor to another. Some manufacturers do
not polish the brass before coating it. Since CO
2
lasers at this power level do not engrave into metals
when the coating is removed, the tarnished brass underneath will have a dull appearance that will need to
be polished with a brass polishing compound. This type of brass is designed for mechanical engravers
that actually remove the metal when engraving which gives the brass a shine without polishing. Brass
that is produced for the laser engraving industry is polished, then clear coated, and finally coated with
paint. When laser engraving this type of material, adjust the power so that the laser beam removes the
painted coating but not the clear coating. This will expose the polished, clear-coated brass without
penetrating all the way down to the metal. Since the brass is already clear coated and polished, it will not
require any cleanup after engraving nor will it ever oxidize. If too much laser power is used, the brass the
clear coat will be removed and the brass underneath will be exposed to the heat of the laser beam
causing instant tarnish. If polishing the brass, use a soft, non-abrasive cloth or tissue (not paper towels)
and good quality brass polish. Do not rub too hard, as this will scratch the painted coating.
DO NOT ATTEMPT TO ENGRAVE DEEPLY OR ATTEMPT TO CUT THIS MATERIAL
WITH THE LASER SYSTEM
. High power and low speed settings can cause the laser
beam to reflect off of this material, which can damage the laser system and can be a
safety hazard. Damage caused by this type of abuse
ARE NOT covered under
warranty.