Fillet Gauge
pinshape
Update: I've now created an Inch version for those who don't use metric! The other day, I was watching Noe Ruiz from Adafruit's Layer by Layer, where he designed a case for the Apple TV remote. When he tried measuring the fillet, he couldn't get an exact measurement, so he had to guess. I've also faced this issue when designing stuff with curves. Then it struck me: how can I solve that? Well, I have a printer and a computer, so why not make something myself? I tried creating something simple, both for design and printing. With this tool, you can measure most curves on objects, like a phone's corner, for example. I think this will be quite useful for people trying to design something that fits an object perfectly. It's also extremely easy to use.
With this file you will be able to print Fillet Gauge with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Fillet Gauge.