Grex TRITIUM Series, Owner'S Manual

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General Operation Grex Tritium Series Owner’s Manual
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4.6 Spray Pattern Adjustments <continued>
Fine Line Spraying
To spray a fine line, position your airbrush close to your work
surface and control your airbrush such that a minimal amount of
paint is sprayed. The closer the airbrush is to the work surface, the
finer the line that is created. An extremely fine line can be obtained
by using the Crown Needle Cap and positioning your airbrush even
closer to the surface. See page 7, Figure 4H for reference.
Wide Line and Background Spraying
To create wider lines and background spraying, position your
airbrush further from the work surface and control the airbrush to
release more paint. Increasing the air pressure, the distance of the
airbrush from the surface, and the amount of paint sprayed will
further increase spray widths. See page 7, Figure 4G for reference.
Stippling
Stippling is the technique of using small dots to simulate varying
degrees of solidity or shading. There are many methods for creating
stippling effects with an airbrush, but one way this can be achieved
is by lowering the air pressure to between 5 and 15 psi and pumping
the trigger. Lower air pressures will usually produce courser
stipples whereas higher air pressures will provide finer stipples .
Note that paint viscosity will also affect the stippling texture.
4.7 Pre-set Knob Adjustments
To help produce constant line widths, your Grex airbrush comes
standard with a Pre-Set Knob on the end of the rear handle cap. A
set amount of paint is sprayed by limiting how far the trigger can be
pulled back. Turning the knob clockwise reduces how far the trigger
can move to help produce consistent fine lines. Turning the knob
counter clockwise allows the trigger to move further back to help
produce consistent wider lines. Fully turning the knob clockwise
will prohibit trigger movement and prevent any spraying. Fully
turning the knob counter clockwise will allow the full range of
trigger action and deactivate the Pre-set knob
capabilties.