Cake icing edge profile

This is a cake decorating edge profile tool giving a semi-circular piped effect around the outside of the cake. Each edge has a different sized profile: 1) Three pipes per 100mm, with each pipe equal to ⅓ of the height of a section (diameter 9.1mm) 2) Three pipes per 100mm, with each pipe equal to 1/4 of the height of a section (diameter 6.6mm) The design includes a measurement scale on one edge. The total profile length is 209.3mm for edge (1) and 206.2 for edge (2). I recommend printing in ABS to give some flexibility, and allow it to be pre-heated in hot water to improve smoothness of finished icing.