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       Prepare a summary slide and a one minute <a href=http://academy.cba.mit.edu/classes/computer_design/video.html>video</a> showing its
          conception, construction, and operation
       Your project should incorporate 2D and 3D design,
-         additive and subtractive fabrication processes,
+         multiple additive and subtractive fabrication processes,
          electronics design and production,
          embedded microcontroller design, interfacing, and programming,
          system integration and packaging