These individual pieces are not shown in the same scale, but are dimensioned to three
decimals. They are intended to be used with CAD software. (I used SketchUp Make 2017,
a free version of Google’s CAD program.)
This additional precision is probably not necessary unless you plan to convert the
CAD file into an STL file as instructions for a 3D printer. To make a simple paper
cut-out puzzle, copy the single page shown at Five 2D Pieces for 01.
See my tips for CAD/3D PRINTING, following these dimensioned drawings [page is currently
in preparation].