Scratch

So, you got a 3D ring... I can't even make a 3D ring using the pen.    Congrats.

But you can't really make actual 3D renderings with Scratch. Only Pseudo-3D. Here's a project made by AddZero: http://scratch.mit.edu/projects/AddZero/152472 It might help you out.    AddZero is really good at this kind of things, but I don't think he's visiting frequently anymore 

You can also type "3D" on the search bar and see what pops up.

Whenever you're programming, the most basic thing that you have to remember is what you want the computer to do. You are trying to make a 3D simulation, right? Since you can't create real 3D, you have to make it look like it's 3D. Think about what makes something look 3D:

1. An object gets smaller as it gets farther away.
2. Objects look closer together as they get farther away.

Of course, this means that the size, X position and Y position are inversely proportional to the Z position. This mean that they equal the actual X position, Y position and size divided by something having to do with the Z position. In my Movement in 3D project, I chose 100/Z. This all may seem confusing, so you might have to look at Movement in 3D to understand. After you get the hang of this, you will be well on your way to creating great 3D projects!

However, I suggest that you try mastering easier things first (scrolling, sprite duplication, animation, etc.) before you try making 3D projects, so that you will get the hang of programming more complicated games and simulations before you jump to something hard.