Hackaday17d
rotating sign
Every click of the plunger spins the circular label inside by one-quarter of a rotation. In [u407]’s case it only needs to alternate between showing “clean” and “dirty”, but there are in ...
Hackaday5y
Clicky Signspinner Works Just Like A Retractable Pen
Every click of the plunger spins the circular label inside by one-quarter of a rotation. In [u407]’s case it only needs to alternate between showing “clean” and “dirty”, but there are in ...