Caliper Radius Gauge (Basically no Maths)

This is a Radius Gauge, which works with standard calipers.
The caliper mount is variable and grips my 16mm caliper shaft well.

The specialty of this flavor of Radius Gauges: basically no math
Set Caliper to inches and read the Radius in decimeters
1.000 in = 1 dm = 100 mm Radius

Measurement range from 5 to 170 mm radii. (Fits nicely on a 200x200mm printbed with Rafts)