Parametric Board Marker with Centering Notch

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This is a circumference marker for when you need to mark both sides or all sides of a board. The OpenSCAD file is included and fully parameterized, though you only need to adjust 2 values as noted in the file. Including STLs for standard milled pine boards 2 x 2, 2 x 4, 2 x 6 and 4 x 4.