In class tomorrow we will be going over exercises 5 and 6. Open lesson 5 Designing Parts and scroll down. I don't have the data sheets with me to send out but we will go over them tomorrow. Also, since the chain tensioners have been designed for the proto bot I would like to haves some students take measurements and dimensions of the hardware tonight so that we can model them to match what was produced. Thanks, Jamie Early Woodward Aircraft Engine Systems Mechanical Design 815-639-6121 Jearly@xxxxxxxxxxxx