Easily print your own 200mm Caliper. It even has a depth gauge...
Measure inside, outside and depth with this versatile measuring tool.

Created using Radan and Tinkercad.
import into Tinkercad to change the thickness and length to suit you and your printer.

Thumbscrew on my print messed up due to negligence on my part but the previous tests for it worked so let me know if there are any problems :)
just updated to a better screw, once again, let me know if you have any issues

I enjoyed making this and hope you enjoy printing and using it.

The better calibrated your printer, the better the accuracy will be.

Creality

Ender 3

No

Yes

0.1mm

15%

supports required on the thin sheath part with the depth gauge.