Touch plate

This topic contains 2 replies, has 3 voices, and was last updated by  Nick 2 months, 1 week ago.

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  • #107107

    Bryan
    Participant

    Has anyone tried to duplicate the Makers Guide – Triple edge finder, http://www.themakersguide.com/home/products/triple-edge-finder-2, for the MPCNC.  Basically a touch plate to find the corner of a work piece but works with tapered and v bits.  I already have the z touch plate but I am thinking of adding x and y but when using tapered/vbits it will not work.  I do have an equation to calculate the center of a circle by probing three edges, but I do not know if I can get Marlin to execute the probing and do the math during run time.  If someone has tried it or has an alternative suggestion that would be great.

    #107379

    Tim W
    Participant

    I have used a 1mm end mill to do edge finding for tapered bits then change back and do the z with the tapered bit haven’t tried to get that fancy yet would like to see what you come up with.     I only used the 1mm because it was there any straight sided mill would have worked

    • This reply was modified 2 months, 3 weeks ago by  Tim W.
    #109282

    Nick
    Participant

    What are you using to control your machine?

    If your controller software offers some kind of macro, you could create a custom homing task.

    Home using the X,Y,Z touch plate, then automatically apply the X,Y offsets for your vbit using a G92 command.

    http://marlinfw.org/docs/gcode/G092.html

    • This reply was modified 2 months, 1 week ago by  Nick.
    1 user thanked author for this post.
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