Update: Version 2 uploaded. Grab files with _v2.
-----
Printing tips: Print with 2 colors for better reading. Contrasting to each other are best. It needs only about 2,2m of fillament. Recommend to click all 3 parts together on heated bed to avoid breaking a latch.
Usage: find a best arc that fits to the model. It has both inner and outer radiuses. Radiuses ≥ 6 mm shows 60°, smaller ones does have 180°. Small arcs marked with + are 1.5, 2.5 amd 3.5 mm radius. Enjoy.
PS: Inspired by https://www.printables.com/model/280185-fillet-radius-finder-innerouter-design-reference-r but it is completely new design.
The author marked this model as their own original creation.