This is the clock I made for my daughter's dance studio's Nutcracker show (2006). They needed a new owl clock that would not only be easy to maneuver, but able to be controlled offstage.  Also, since a dancer comes out of it during the show, they wanted to make sure that the doors would be able to easily be closed and not slam.  Furthermore, there is a 60 second set change, in which this clock, the Christmas tree and all the presents must be removed from the stage.  In order to make the clock easy to move, I built in hidden casters under the base, and the entire top of the clock (the owl) can be quickly folded down for a more compact prop.  The clock is also balanced for a low center of gravity, so that it isn't easily tipped, which was a major problem with the old clock. The wings, eyes and hour hand are all controlled by a BasicStamp, via a 5 function keyfob remote control.  I added a serial connector on the back of the control box, so that, at any time the clock can be reprogrammed simply with a laptop computer.  I have three Futoba servos controlling the movements.  Two for the wings and one for the hour hand.  You will see in the gallery all the workings and explanations.  Enjoy!!!

Video:
Wings and time change
Wing movements
Time changing...

Nutcracker Haunted Owl Clock Gallery

Stills: (click for full size)



Old Clock:






This is the original clock.  It was controlled from inside by pulling strings.  The time was changed by spinning a wheel (it was usually not set right, anyhow).  The doors had simple hinges and the clock had to be counterbalanced by a stage sandbag.  It was very flimsy and was difficult to move offstage as it was tall and cumbersome...