MoodSwing

@Ronen Shouker (talk) 11:57, 26 October 2013 (UTC) = Description = A swinging source of light going up and down, projecting through half a cylinder with the shape of a neutral face :| When the light source is down it projects the face shape upward, the projection is in the shape of a happy face :) When the light source is up it projects the face shape downward, the projection is in the shape of a sad face :(

= The mechanism = As the handle get turned, a crack shaft translate the circular motion to a linear one, which swings the light source.

= Video = An initial video of the project