I am making some table toppers for Christmas Gifts. The final (Hexagon) size is 24 x 24 from flat side to flat size. I need to decrease the size to about 18 by 18. I decreased each piece by 1/2 inch (on the width and the length) however, when I piece it, it does not match up (I have triple checked my cutting sizes for exactness and accuracy of 1/4" seam. I need help. The pattern is called, "Table Grace" in a book from This & That called Northern Botanical. Sorry no camera to take pictures at present.
Any suggestions appreciated.