DIA-meter tool

Radius Caliper (No Computation Required) is a very useful tool that sorrenaveria shared.

While remixing the model to adapt it to my Mitutoyo caliper I decided to also use the same concept and measure large diameters. So I came up with a variant where you can measure up to 500mm diameter (printable on Prusa MK3S) by reading the caliper and only multiplying the reading by 10.

Be extremely precise when positioning the digital caliper within the fixture, as any error will also be amplified by a factor of 10.

Don't think of it as a precision tool, rather a convenient one!

The details are included in the “DIA-meter tool setup” pdf file.

Some support needed when slicing the model

M3 Ball-nose spring plungers

M2 cone-point set screws