Hammer Drop Wind Chime

This 3D-printed percussive wind chime mechanism uses the wind to lift and drop a heavy hammer against a hollow sounding box. To assemble, first slide the central cam axle onto the base plate's middle pin. Next, press the sounding box onto the left peg and the leaf spring hammer onto the right peg so the spring rests against the cam. Finally, attach the wind sails to the square peg at the top of the axle and place it outside.