The puzzle pieces are divided into four types: corner pieces, edge pieces one and two, and middle pieces.

The number of rows and columns in puzzle design is even.
1、 When making, first perform array operations on various puzzle pieces, and then assemble them.
2、 Insert the prepared image on the upper layer, with a length and width that perfectly covers all the puzzles.
First, perform image carving, then proceed with puzzle cutting.
3、 Cut and assemble the puzzle, measure the length and width, and design the outer frame.
Usually, the aspect ratio is a few millimeters smaller than the actual size, and this step is crucial.
The outer frame designed together with the puzzle will enlarge after cutting. Due to the gap. So it is necessary to design a separate frame.