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Glue the cardboard sheet to the shape of the cube and secure the edge position with duct tape

Stick the paper on the board, and then glue the board to form a square frame.

Use special cutting tools to cut large pieces of cardboard into small pieces of cardboard.

Cut the board at a bevel and cut the slotted cardboard

Now cut a line of the template and cut a line at a different angle

Grind a flat gap in the board with special tools

First cut the board into two parallel lines, then dig out the grooves

Draw an auxiliary mark on the board before cutting

Put the plank on the equipment, adjust the position, and cut out small pieces of the same size.

Dig out numerous grooves in the cardboard and inlay the two boards