X/Y Drive Question

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  • November 4, 2012 at 3:15 am #3581
    wholder
    Member

    I’m working on an X/Y platform that’s based on the CoreXY idea described at http://corexy.com.  This design doesn’t use a conventional X/Y drive scheme where the X and Y axes are each independently driven by a dedicated motor.  Instead, the motors are driven in unison to move on one axis and in opposition to move on the other.  I’d like to know if the TinyG controller can be configured to work with this kind of X/Y platform?

    Wayne

    November 4, 2012 at 11:38 am #3583
    alden
    Member

    It can be done, but it would involve you (or someone) writing the kinematics for CoreXY. There is a section of the code in the kinematics.c file for inserting the inverse kinematics for conversion from cartesian to non-cartesian dynamics. There are a limited number of machine cycles so the transformation would have to be pretty efficient (running in less than about a millisecond, altogether), but I suspect a CoreXY transformation on only X and Y should be possible.

    I hope this helps – given that there is no native support for this right now.

    Alden

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