Recently made these 2 puzzles with the new beta unit I now have. Bought from the design store and instantly added to my account as available. Stick in some 1/8" Beta proofgrade hardwood. Add an uploaded image and sized each pic to the cut file in the GF create interface, and even resized each puzzle to 2 different sizes. Place the new art work together exactly where I want, and reach over to press the button. Cake.
You set up the number of columns and the dimensions which will determine the number of rows and number of pieces. Or change the piece shape. It exports a SVG file. Just overlay your preferred image. Open it in Inkscape or upload directly to the GF. In Inkscape you can round the edges of the puzzle in one step if you want. Create a preview or download the SVG. Very easy to use.