Step 1. Measure across the width of the board at 3 inch increments

Step 2. Set your miter saw to 24 degrees, with each cut flip the board creating a wedge 3” wide and 3 ½” long.

Step 3: Now sand the sharp points down to make rounded corners, I used a belt sander anchored in a vice.

Step 4: Paint the pieces with a good base coat, I used a white spray paint.

Step 5: I built a rack to help apply paint evenly and minimize cleanup. Reposition the dividers with each color.

Step 6: Paint the sides and touch up any areas that might need some extra attention.