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WARNING:
Always
unplug
machine
before attempting
any
troubleshooting
or maintenance
on the machine.
Checking
the Board Sensor:
There are several reasons why the
machine will prompt the user to "Check the Board Sensor".
o
There is dust obscuring
the sensor.
Please see the next section
titled "Cleaning
of the Board Sensor" for details on how to address
this situation.
o
There are existing features
on the workpiece,
like holes or other
carved features,
which prevent the sensor from tracking the top
surface.
This can be fixed by placing a piece of masking tape over
the feature.
o
The material is too transparent
or reflective.
This can be fixed by
placing a piece of masking tape on the surface of the workpiece
along the line that the sensor traces while measuring.
This
generally
requires
placing tape across the width and length of the
workpiece.
Cleaning
of the Board
Sensor:
From time to time the sensor that
locates and measures
the workpiece
can become obscured
by dust.
The sensor system consists of an infrared LED and an infrared
detector.
The board sensor works by reflecting
infrared light off of the
board, and reading the intensity of the reflection.
When the board is
underneath
the sensor, the reflected
intensity is high and when the
sensor is the board, the intensity is low. The LED and detector
are
mounted behind a clear window
in a plastic case at the bottom of the
Horizontal
Moving Truck (Y-Truck).
If cleaning
is required,
the
machine LCD will display Please Clear Board Sensor.
To clean,
simply blow onto the sensor window with compressed
air or wipe with
a clean cloth.
It is recommended
that this sensor and mirror be
cleaned after every project.
Board Edge
Top Compression
Sensor
I
FIGURE 28: BOARD SENSOR CLEANING
Sears,
Roebuck
and Co.
CompuCarve
TM
System
(Rev 1.13) 01/06/07
36
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