Pocket Ruler

This is a pocket ruler that you can unfold to be a 40 centimeter ruler.

One thing thou.

Print the PocketRuler_TEST first to make sure you can make a cut with a sharp thin knife to separate the to parts from one another.

In the middle of the circle just gently separate the parts then you should be able to rotate the two parts into position.

Depending on the plastic you may not need to cut, just rotate. You have to see for yourself.

For best result start with a dark color (black) and at 3.8 mm change to a light color (white)

See my other models here…

https://www.printables.com/@gillis/models