This is simple-ish program I created in order to create custom rings, with text on them. This is either for 3D modelling purposes, or 3D printing purposes. Excuse that the variables I created are a little hard to understand, just leave a comment if you don't understand. I created this so I could also print it on my M3D in case you guys are curious :)

Note - If you can't see any text on the ring, make sure you've assigned text to the ring text variable, and you may also have to change the letter depth to be higher.