InFocus M-300 manual Brass Painted

Sample Materials 6-9

BRASS - PAINTED

RASTER ENGRAVING

LASER WATTAGE	POWER	SPEED	PPI	PASS	DEPTH
15	90	80	500	1	.001”
20	68	80	500	1	.001”
25	54	80	500	1	.001”
30	45	80	500	1	.001”
35	38	80	500	1	.001”
40	34	80	500	1	.001”
45	30	80	500	1	.001”
50	27	80	500	1	.001”
VECTOR ENGRAVING
LASER WATTAGE	POWER	SPEED	PPI	PASS	DEPTH
15	20	4.0	1000	1	.001”
20	15	4.0	1000	1	.001”
25	12	4.0	1000	1	.001”
30	10	4.0	1000	1	.001”
35	9	4.0	1000	1	.001”
40	8	4.0	1000	1	.001”
45	7	4.0	1000	1	.001”
50	6	4.0	1000	1	.001”

COMMENTS

The manufacturing processes for coated brass varies from one vendor to another. Some manufacturers do not polish the brass before coating it. Since CO2 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 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 WILL NOT be covered under warranty.