USER MANUAL, RSS-1000-CVSI
7000-5970
Rev.
A
page
282
of
396
ESTABLISHING
FIDUCIAL
POINTS
(Future
Feature,
Not
Present
in
this
Release)
The establishment of fiducial points for a pattern is a very important and powerful feature within
the software. Fiducial points are essentially user defined target registration marks that the system
utilizes to determine the orientation of the printed circuit board and adjust a profile accordingly.
Although Metcal™ recommends fixturing for repeatability, there are some applications in which this is
not practical or when tolerancing within the fixture is loose enough to produce variability between the
mounting of successive boards. For this reason, the fiducial points are used to recognize a shift in
orientation from what was originally programmed, and the software will automatically shift all patterns
by the calculated shift in orientation. For the best results, use of the Fiducial Points function should
occur
PRIOR
to the programming of any points. This will only need to be done once for each profile
programmed. Please note that the fiducial point function can cover a wide range of translational
adjustments but has a limitation of 1.5° of rotation, relative to the center of the PCBA. However, by
utilizing a fixture for mounting of the board, 1.5° will accommodate most applications.
Please be mindful of the lighting when establishing fiducial points AND when running the profile
associated with fiducial points. The objective is to maintain consistent lighting from when screenshots
are taken to machine operation. Therefore, it is good practice to keep the unit in a stationary location
in which the lighting is controlled. In addition, do not crowd around the unit or stand in front of a light
source when taking a screenshot. The simple act of hovering over the unit while the screenshot is
taken can have negative effects as this will cast a shadow over the unit. Avoid casting shadows that
will not be present during normal operation.
WARNING: Failure to adhere to this recommendation
can have adverse effects on a program that uses any of the camera functions. A drastic enough
change in lighting from when the fiducial points were established to when the unit begins running a
profile associated with fiducial points can cause the profile to lockup.
1. Tap the Camera icon to enable the Computer Vision Camera
1.1. Note: The icon will illuminate blue when active and an image should appear in the workspace.
2. Use the jog controls to move to the desired location for screenshot.
2.1. If necessary, use the quick theta snaps to rotate the end effector 90° to clear any bracketry of
end effector from obscuring view.
3. Tap the “Take Screenshot” icon
4. Save the image
4.1. Pro Tip: It is good practice to keep the name of the image consistent with the profile to be
programmed. For example, if an Engineer were to program Metcal’s I/O PCBA, the name
“Metcal I/O PCBA” should be used when taking a screenshot and when saving the
programmed pattern.
5. Do NOT use the jog controls to move in any direction after the image has been taken. When
fiducial points are established, the X and Y locations are stored within the software. Whenever
the profile is run, the robot will automatically jog to this store X and Y location to search for the
images. Any deviation from the stored X & Y location will be perceived as a shift and the pattern
will be shifted a distance equivalent to this deviation.
6. Tap the Camera icon to turn off the Camera
Summary of Contents for RSS-1000-CVSI
Page 21: ...USER MANUAL RSS 1000 CVSI 7000 5970 Rev A page 21 of 396 ROBOT BASE CONNECTIONS N ...
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