February 18, 2019 / Class Lectures & Links Class 10: Intro to Doppelganger + Velcro Air Tube Connections Doppelgänger Assignment: Doppelgänger Assignment page Doppelgänger Slideshow Choosing an Object to Pattern slideshow Air Tube Pattern Files: Air Tube Laser Cutter DXF file (in mm) Air Tube PDF file