Réalisation - Roman/Arab numerals conversion disk

Etape 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.

Etape 2

Pass a brass paper fastener through the hole in the center of the square shape, and then pass on it all the circles from the smallest to the largest. Close the brass fatener to fix enerything together.