Ring (with optional text) creator and customiser

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 le