faro laser

  • Hello


    Somebody met this device or the like need some information.




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  • basically there are three general types of accuracy:
    a) Standard accuracy (common robot)
    b) ABS or absolute - this is standard hardware robot but with ABS measurement
    c) HA or High Accuracy (premium hardware robot with ABS measurement, aka Xrob)



    ABS measured robots have a model enabled in software and this requires PID file (special "fingerprint" for very specific arm and payload).
    HA robots have top grade parts that match MADA precisely. such robots will have longer lead time.

    1) read pinned topic: READ FIRST...

    2) if you have an issue with robot, post question in the correct forum section... do NOT contact me directly

    3) read 1 and 2

    Edited once, last by panic mode ().

  • Eh? No, the laser provides information that can be used to calibrate the robot. The big "X" frame allows the Faro to measure 6DOF at each test position, to improve the results. By building a map of the positional errors across the work volume, an improved set of Denavit-Hartenberg parameters for the robot can be created, or a volumetric map of Cartesian corrections can be generated.
    That being said, this device as shown has one major weakness: it will not measure the "flex" of the robot caused by gravity at various angles. To obtain maximum benefit from this measurement, it would be necessary to attach this Faro device to the actual working payload of the robot. Ideally, one would measure accuracy errors across the entirety of the critical working volume of the robot, but omit areas where the robot does not require such high accuracy.
    One other weakness of this arrangement is that this device is limited in sight angle -- an end effector orientation range greater than about 30-45deg will probably result in a degradation of accuracy and eventually a loss of line-of-sight to the laser targets. An accuracy map requiring larger ranges of orientation might require multiple measurements made with this device mounted to different sides of the working payload, or multiple devices.

  • you tell robot to go to position XYZ then check with tracker if robot is really there (or how far it is off). it it is not spot on, apply correction value until it is in perfect spot.
    if you sample plenty of points, you can (robot can) calculate correction for any point in space (even between points where measurements were taken). this is what gives accuracy to ABS and HA robots.

    1) read pinned topic: READ FIRST...

    2) if you have an issue with robot, post question in the correct forum section... do NOT contact me directly

    3) read 1 and 2

  • Please make sure


    _
    Using a laser we create a deviation image To the file .PID . We put the file into a folder ir_spec. I enable the ABS functions In file $option . FLe .PID It loads to
    RDW.The robot starts working with laser data to make corrections from the template .pid

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