Hermes VANGUARD OPTIMA, Руководство пользователя

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8-22 Sample Materials
pieces will fall through to the table when cutting is finished. If raising the wood, set up the
drawing so that the inner pieces of the drawing are cut first, otherwise pieces may fall through
at the wrong time.
Not all wood finishes are created equal. When ordering wood from a supplier, be sure to
specify that it is being used for laser engraving. Some finishes cannot handle the heat from the
laser and will bubble, blister, and possibly turn white. For engraving softer woods such as pine
or balsa, reduce the power settings to acquire the best depth. Engraving too deep on soft
woods will reduce quality. Every type of wood will engrave differently. Experiment with different
types of wood and note the results. It is better to engrave woods that are finished. If engraving
unfinished wood and it is not masked with transfer tape, the smoke residue tends to embed in
the wood and is impossible to remove without sanding. To prevent this, mask all unfinished
wood with transfer tape.
WOOD INLAYS - VENEERS
Create a drawing with no outlines, only filled areas. Engrave the filled areas almost as deep as
the thickness of the veneer (usually about .003 inches (.1 mm) or less). With some water and a
nylon brush, remove all residue from the engraved area. When cutting veneers make sure they
are lying absolutely flat. In the drawing, give the objects an outline of .001 inches (.1 mm) and
remove the fill. Adjust the power so that there is just enough power to cut completely through
the veneer. Overpowering the cut will cause too much material removal and the fit will not be
snug. Some software programs allow outline offsetting to compensate for the thickness of the
beam. This is called contouring and is optimal if planning to do this type of work. Usually, a
contour to the outside of the vector line of .006 inches provides a tight fit. Remember, if using
more power to cut through the veneer, compensate for the thicker width of the laser cut by
contouring a little further to the outside.
Another method, which we believe is a better way, is to first create your graphic and fill it with
the color black. Then give it a white outline of .012 inches (.3 mm). If you look at the graphic
when you add the outline, you will see that it appears to shrink. Now raster engrave the
graphic to a depth slightly shallower than the thickness of the veneer. When the engraving is
finished, place the veneer into the laser system. Take the graphic on screen, remove the black
fill and change the outline to the color red. Also make sure that the red outline thickness is set
to .001 inches (.1 mm) so that it will vector cut. Cut out the veneer with the laser system, add
glue to the veneer, apply the veneer into the engraved area of the other piece of wood, and let
dry. After the glue has thoroughly dried, sand the veneer until it is flush with the base wood. A
good veneer to use are those with an adhesive backing. Once cut, place the veneer into its
proper place on the engraved wood block and with a clothes iron, iron the veneer into the
engraved wood. This melts the glue and causes the veneer to stick to the engraved area.
Finish the wood as you desire and the finished product will look fantastic.
The veneer can now be sanded flush with the surface and a finish coat applied.