InFocus Laser Platform M-300 - Manual (Page 77)

Sample Materials 6-13
GLASS / CRYSTAL
RASTER ENGRAVING
LASER WATTAGE POWER SPEED PPI PASS DEPTH
15 100 10 300 1 .001
20 100 13 300 1 .001
25 100 17 300 1 .001
30 100 20 300 1 .001
35 100 23 300 1 .001
40 100 27 300 1 .001
45 100 30 300 1 .001
50 100 33 300 1 .001
COMMENTS: Engrave at 333 DPI
VECTOR ENGRAVING
LASER WATTAGE POWER SPEED PPI PASS DEPTH
15 10 2.0 300 1 .001
20 10 2.7 300 1 .001
25 10 3.3 300 1 .001
30 10 4.0 300 1 .001
35 10 4.7 300 1 .001
40 10 5.3 300 1 .001
45 10 6.0 300 1 .001
50 10 6.7 300 1 .001
COMMENTS
Glass engraving is different from other types of engraving. A CO
2
laser cannot engrave into the
glass nor can it cut glass. Instead, laser interaction with glass causes the surface of the glass
to appear frosted. Sometimes, placing a piece of newspaper on the glass and dampening is
with water will improve the appearance of the engraving. Another method is to apply transfer
tape to the glass, wet it with water from a spray bottle, and laser engrave it. The transfer tape
and water will act as a heat sink and pull the heat away from the glass as the laser system
engraves it. This helps reduce chipping or flaking of the glass.
Be especially careful when engraving leaded crystal. The lead in crystal conduct heat, which
can cause much more flaking or even the cracking of the crystal. Use a lower power setting to
try to reduce the chance of damage. It is always good to have at least one extra piece to use as
a test piece to get the right settings especially if you have never tried to engrave that material
before.
ENGRAVING THIS MATERIAL PRODUCES ABRASIVE PARTICLES. Clean
the laser system more frequently to reduce wear and tear on the motion
system components and optics. Damage to the laser system from inadequate
or insufficient maintenance WILL NOT be covered under warranty.