Section 10: Material Engraving Techniques
107
Apply a .001 outline around the seal to define the outside edge of the seal. Use the
combined Engraving/Vector mode to first engrave the seal and then cut out the seal.
Plastic
Plastic Background
Engraving plastics have changed greatly in the past few years. Before lasers, plastic
manufacturers designed plastic for rotary engraving systems. A rotary engraving
system uses a mechanical spinning bit to remove material. Therefore the depth of the
top layer or “cap sheet” was designed to make it easy to rotary engrave. Cap sheet
thickness was approximately .010 inches thick and laser engraving was nearly
impossible because by the time you applied enough power to get through the cap
sheet the laser melted and deformed the plastic.
Plastic manufacturers have developed a broad range of plastics that have thinner cap
sheets that are .002 to .003 inches thick that provide much better engraving and
cutting characteristics. These plastics are commonly referred to as Micro Laminates;
Micro surfaced, or simply laser engravable plastics. These plastics are generally very
easy to engrave with a laser since they all have similar characteristics.
Because there is such a broad range of plastics it is necessary to experiment to
determine if a particular type of plastic is laser compatible. Different color plastics,
To Next Page
Loading...
Need help?
General
