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  1. #1
    Join Date
    Oct 2012
    Posts
    70

    Z axis correction

    Hi all,

    I have a project using the KFLOP that requires me to machine flat aluminium bonded to a circular substrate. The machine is a rotary-type router - where there is an A axis as a rotary axis, a Y axis traversing the length of the bed, and a Z axis for depth.

    There is unavoidable surface height deviation due to the method that the aluminium is bonded to the substrate.

    I would like to know whether is is possible to probe multiple points along the aluminium to create a tubular map of Z height deviation, and to correct this in either the G-Code or some auxillary feature of KmotionCNC.
    The aluminium may be energised for using a probing method.

  2. #2
    Join Date
    May 2006
    Posts
    4043

    Re: Z axis correction

    Hi embraced,

    I'm not sure I follow your description or what a "tubular map of Z height" is.

    But I think a sloped surface on a rotating table would move in Z as a function of Y and Theta as something like:

    Z offset = Slope * Y * sin(theta)

    How lengthy is the Gcode path to machine it? Seems like fracturing the path into small segments and modifying all the Z coordinates according to a formula like that might work.

    Regards
    TK
    http://dynomotion.com

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