Wrist Camera Instruction Manual
4.1. Guidelines on Snapshot Position
Caution
During the snapshot position definition, the ambient light must be of approximately 500 lux. At run-time, this
condition is not required.
The following must be considered when choosing your Snapshot Position:
l Choosing the workspace:
l Mostly uniform color;
l Planar;
l Provide contrast to your part; refer to theVision System Specifications section for details.
l Distance to the workplane:
l Your Snapshot Position will determine the field of view of the camera and thus the workspace used afterwards.
l See specifications in the Vision System Specifications section for details on the field of view & part size;
l Getting closer to the workplane, will reduce your workspace but allow you to locate smaller objects;
l Getting away from the workplace will increase the workspace but will increase the minimum size of objects to
locate.
Tip
During the Snapshot Position define step, use the "Show Grid" button, a grid will appear. Your
object should be larger than one grid cell.
l Angle of the camera:
l Snapshot position should consider the Camera angle:
l Robotiq greatly recommends to have the Camera perpendicular to the surface:
l Be as close as possible to perpendicular, avoid reflections.
l Object should be seen from the top view, not from the side.
l Calibration board:
l Snapshot position does not need to see the full calibration board, calibration step does.
Tip
The Snapshot position and Calibration pose are decoupled, they do not need to be the same.
l Use the appropriate calibration board.
l Board must be fully visible by the Camera.
l Refer to theVision System Specifications section for Calibration board position specifications.
©Robotiq inc. 2016-2018
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