Press cut

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General information

The cutting of a jigsaw is called punching. The first puzzles made of plywood were cut with a jigsaw. In the mass production one uses stencils from knives, which punch the puzzles. Other manufacturing methods use laser or waterjet techniques.

A demonstrative video about the production of a punching sheet has been published by the "Sendung mit der Maus".

Kind of press cuts

There are different types of cut patterns, the most common form of cutting is grid or raster punching.

Grid punching

Grid Punching

In the case of a grid punching, the individual pieces lie as in a checkerboard pattern in which the edges of the individual panels have been provided with notches or bulges. Each edge of a piece touches only one edge of another piece.

This is the most common form of punching from manufacturers such as Ravensburger, Schmidt or Clementoni.

The size of the individual pieces nevertheless varies, since the alignment on a uniform grid is not exactly given. You can also determine partially how the position of a single piece is located: horizontal or vertical.

A determination of the total number of pieces of a puzzle is possible by counting the edge pieces horizontally and vertically and multiplying both.