When using websites such as
http://www.botlanta.org/converters/d.../sprocket.html, they usually tell you the exact amount of chains or the exact distance that you will hypothetically need between two sprockets. How well does this translate to real life? Should I use the exact amount recommended or should I always give room for error? If so, how much error?
For context, I'm part of the CAD team, but I have little experience with actual robot assembly.