Outstanding student designThe poll is over. Thanks to all participants!
The infinite ruler
Skrolla is a concept of the ruler which comes from my own experience and needs. To measure or to draw something constantly led me to the idea of creating a design that will allow you to work with any distance in a compact package. The 10 cm stainless steel double-sided ruler mounted on rollers fitted with a rubber band is a mechanical solution for achieving endless measurement or drawing distances.