### Agenda: <p> 12:00: Assignment Review <br> 12:30: Machine Showcase! We'll show some examples of machines that have been built in our lab. <ul> <li> <a href='../../lab/machine/machines.html' target="_self">Nathan's wooden machine kit </a> and <a href='http://nathanmelenbrink.com/20_vaultbot/1.mpg'>and VaultBot</a> </li> <li> <a href=''>Suvin's Bio-printer </a> </li> <li> <a href='https://gitlab.cba.mit.edu/neilg/urumbu'>Rob's Urumbu machines</a></li> <li> <a href='http://fab.cba.mit.edu/classes/863.21/Harvard/people/ibrahimibrahim/final/finalprogress.html'>Ibrahim's Rockbot </a> </li> <li> <a href='http://fab.cba.mit.edu/classes/863.21/Harvard/people/GabbyPerry/index.html'>Gabby's knitting machine </a> </li> </ul> 1:00: Break <br> 1:15: Workshop on <a href='../../lab/machine/steppers.html' target="_self">stepper motor control</a> and mechanical design <br> <ul> <li> Convert angular motion to linear motion (use shafts, belts, etc) </li> <li> Convert steps to mm (linear travel distance) accordingly </li> <li> Explore different microstepping modes </li> <li> Adjust motor speed and torque. What are the limits? </li> </ul> </p> <h3> Assignment: </h3> <!-- Make a machine that includes at least one stepper motor. Feel free to use other items in the lab (e.g. string, magnets, wires). Demonstrate that you calibrate motor position (i.e. guarantee the "home" position is the same each time you power on the device) --> <p> Work on final project MVP. </p> <h3> Labs: </h3> <p> Work on final project MVP. </p> <h3>Reading:</h3> <p> Chapters 7-9 of <a href='http://mars1980.github.io/resources/making_things_move.pdf'> Making Things Move </a><br> <a href='https://forum.arduino.cc/index.php?topic=284828.0'>Arduino Forum Stepper Motor Basics</a><br> </p> <h3> Resources: </h3> <p> <a href='https://forum.arduino.cc/index.php?topic=284828.0'>Arduino Forum Stepper Motor Basics</a><br> <a href='https://docs.google.com/presentation/d/1ZqWlTu3C6ChjgVlh-ZcghNG3y8bAC1Wpp0kyp3fGtFE/edit?usp=sharing'>Principles of Machine Design</a><br> <a href='https://roberthart56.github.io/SCFAB/SC_lab/PS70_machine/index.html' >Examples of networked machines</a><br> <a href='http://fab.cba.mit.edu/classes/865.21/topics/motion/steppers/index.html'>MIT Machines Class page on Steppers</a><br> <a href='https://digital.library.cornell.edu/collections/kmoddl'>Reuleaux Kinematic Mechanisms Collection</a> (especially belt drive mechanisms)<br> <a href='https://cabaret.co.uk/'>Cabaret Mechanical Theatre</a><br> </p>