We have an EPSON R6 robot with a camera mounted to Joint 2 arm. After following the vision calibration procedure, we found that the vision coordinate and robot coordinate are not match. For example, we moved the camera to the top of a marker and the reading of the marker position from vision is X=-155.308 mm Y=155.677 mm. However, when we move the robot tip on top of the marker, the reading from the Robert Manager is X=-155.808 mm Y=157.16 7 mm. So there is about 1.359 mm difference in Y direction. What is the cause of this kind of difference? Can that be caused by EPSON's calibration algorithm? Also when the procedure wants us to move the robot so that the marker appears on the top left position of the vision window, is this an approximate position?
Position gap between vision and EPSON robot
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tcyang123 -
March 22, 2019 at 1:08 AM -
Thread is marked as Resolved.
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Hi tcyang
Welcome to the robot forumIf this 1.359 mm consistence on any location ? You can just added it the y coord when you move
I've nnever done mounted camera on robot for Epson but that error could be because you TCP is not "perfect" or the distance to the object is different at what you taught when you jog the robot