Simone Giertz built a flip clock that also operates as a moon phase tracker for a friend.
While in Egypt, she and dina Amin bought some old flip clocks from a flea market and decided to use one to make a moon phase tracker.
Giertz cut 30 semi-circle flaps from polystyrene and affixed vinyl cut-outs to the flaps to create the moon phase tracker.
She has since shared design files enabling individuals to build their own flip moon station, but users will have to develop their own mechanism for driving it.
Comments on the design suggest that it would be useful for the moon phase tracker to turn automatically, sync with the local moon and offer some form of indication as to whether the moon is currently visible.
