this is a tutorial for the beginner who need to learn the basic commands in rhino.

In this tutorial I'll show you a simple way to create whatever cog you wish and with any number of pieces.

Learn about using Rhino3d, quite simple once you get the grip. It's based on subtracting one solid from another. After practicing it many times, I arrived at the conclusion that it's best to start with the top part of the fork and then construct the whole body.