There is a wedge to assist using with a paper template (paper weight similar to construction paper) as a guide. The radius is calculated from the face that the paper makes contact with to the center of the circle. The distance between that face and the actual edge is .029.
It was also designed to be printed in dual color so there are two .stl files for EACH version. There is a 1", 1.25" and 1.5" version….this is the radius….not the diameter.
Designed in Solidworks
The author marked this model as their own original creation.