Video Link to Introduction - START HERE
For your first build, create the hopper legs as shown in this picture.
This is your starting point.
You will need to watch how your hopper performs with these legs to start thinking about how to improve its performance.
Grasshopper leg motion looks like this - see video.
Now for Gear Ratios.
We will go back to using wheels for this.
Look through the slide deck to the right. The videos in it are no longer available for viewing, but you will be able to see how to create a gear ratio and see what the different types of ratios can do.