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  1. 05-19-2008, 04:25 PM #1
    greasetattoo
    greasetattoo is offline Registered
    Join Date
    Mar 2006
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    Machining not perfect holes

    Hey All,
    I have a Sherline mill converted to CNC.
    I just installed A2Z's headstock riser.
    I have 2 of them on my machine. (an extra 4.2 inches of travel on the X axis.

    I machined these parts out of Delrin.
    Excuse the pictures, but kinda hard to see.
    My Circles/pockets are not perfectly round.

    I am running 700rpm, 15ipm.

    The roundness of the gear is fine, just the cam is out of round. Same with the bearing hole on the white piece.

    I use DeskCNC and VcarvePro.
    Anyone have any ideas?

    thanks,
    Grease
    Attached Thumbnails Attached Thumbnails fangear.jpg  
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