Paper And Cardboard; Plastics; Rubber; Stone - Omtech SH-G570 User Manual

4 Operation

4.6.5 Paper and Cardboard

When engraving various paper products, generally use low to moderate power and fast speed. Test
samples from each batch, as only small parameter differences can separate effects that are too light
from those that burn through the substrate. As with leather, be especially attentive of the possibility
of fire, as well as the dust produced in repetitive applications.

4.6.6 Plastics

Plastics for engraving are available in many different colors and thicknesses and with many different
coatings and surfaces. The majority of available plastics can be well engraved and cut with the laser.
Plastics with a microporous surface seem to give the best result, because less surface material needs
to be removed. When engraving plastics, generally use low power and high speed settings. Marking
and engraving with too much power or at too low a speed can concentrate too much energy at the
point of contact, causing the plastic to melt. Among other problems, this may produce poor engraving
quality, noxious fumes, and even fires. High resolution engraving can cause the same problem, so
medium to low resolution designs should be preferred for most plastics.

4.6.7 Rubber

The various compositions and densities of rubber cause slightly varying engraving depths. Testing
various settings on sample pieces of your specific rubber is highly recommended for best results.
When engraving rubber, generally use a consistent high-power setting and create your effects by
varying the laser's speed. Microporous rubber materials require a significantly higher speed than
standard rubber. Engraving any kind of rubber produces a considerable amount of dust and gas.
Depending on the amount of work, breathing PPE and/or a full ventilation system may be required to
address the problem.

4.6.8 Stone

When engraving various kinds of stone, generally use moderate power and moderate to fast speed.
As with ceramics and glass, be mindful of the dust created (especially for repetitive industrial
applications) and take similar measures to ensure the safety of users and others in the work area.

4.6.9 Textiles

When engraving textiles like cloth and fleece, generally use low power and fast speed. As with
leather, be especially attentive to the possibility of fire and dust.
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