### Agenda: 12:00: Website review / introductions <br> 12:30: <a href='../../lab/cutting/universal.html' target="_self">Intro to Laser Cutting</a>, <a href='https://makezine.com/2015/11/13/how-to-use-your-digital-calipers-7-tips/'>Measuring with calipers</a>. <br> 1:15: Break <br>  1:30: Choose either Fusion or Blender. The Fusion group will meet Ibrahim in 103 for a laser cutting demo, while the Blender group will learn 2D sketching with Bobby and Kassia in 102.<br> 2:15: Switch groups. The Blender group goes to the laser cutter while Ibrahim gives a <a href='../../lab/cutting/sketch.html' target="_self"> Fusion 360 sketch tutorial</a>. ### Readings: <a href='../../lab/cutting/2d-cutting.html' target="_self">Guide to 2D cutting</a>. <br> <a href='http://mars1980.github.io/resources/making_things_move.pdf' >Making Things Move</a> chapters 1-3. Much of this should be quick to skim through as a refresher, but pay attention to concepts that may be new to you like "minimum constraint design". No need to do the exercises. <br> <a href='https://www.makerspaces.com/how-to-solder/'>Soldering</a>.<br> Sparkfun: <a href="https://learn.sparkfun.com/tutorials/what-is-electricity">What is electricity?</a>, <a href="https://learn.sparkfun.com/tutorials/what-is-a-circuit">What is a circuit?</a>, <a href="https://learn.sparkfun.com/tutorials/electric-power">Electric power</a>. </p> <h3> Labs:</h3> <p> Cut something with the <a href='../../lab/cutting/vinyl_cutter.html' target="_self">Vinyl Cutter</a>. Work on press-fit assignment. Make sure to cut at least a test piece before the end of lab. </p> <h3> Assignment: </h3> <p> <ul> <li> Create a press-fit construction kit that can be assembled in multiple ways, and accounts for lasercutter kerf. <br> Examples: <a href="https://kassialove.github.io/PS70-assignments/week2.html"> Kassia's triangles</a>, <a href='https://tomkinsc.github.io/harvard-ps70/2020-02-11/'>Chris's pencil holder</a>, <a href="https://kian2attari.github.io/2020/02/01/week-2.html">Kian's Moose</a> </li> <li>Work through a Fusion 360 tutorial, like <a href='https://www.youtube.com/watch?v=vVFYrBClkPc'>this </a> or <a href='https://help.autodesk.com/view/fusion360/ENU/courses/AP-GET-STARTED-OVERVIEW'>some of these</a>. Document what you produce. </li> <li> Select at least 2 household objects or components from the lab (could be items you think you might include in your final project). Measure them using calipers, and model them in CAD. Create an assembly using these components, and document your work on your webpage. You may also incorporate items from other 3D model repositories like <a href='https://grabcad.com/library'>GrabCad</a>. </li> </ul> </p>