How to use ? - Roman/Arab numerals conversion disk
Step 1
Download the model from the section 'blueprint/plan' and print it in color.
Coarsely cut around the 5 shape.
Glue the shapes on the thin cardboard with some glue stick.
This last step can be avoided by printing directly on thick paper. Punch with great precision the center of the shapes.
Cut the edges of the shapes carefully.
Cut the two 'triangular windows' of the square shape.
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