Thingiverse
Alarm Sundial
di yba2cuo3
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Set the sundial to 12 o'clock & wait for the sun to come around everyday to alert you when it hits the “noon mark”, or set it to sound-off at any other time for that matter during sunny days. Essentially, this sundial works as a solar alarm clock!
An additional feature to this design is that the user no longer requires to follow a precise visual alignment of the nodus “sunspot” onto the analemma curve to tell the time. This can now be done without any visual confirmation by simply rotating the alidade until the sun is detected onto a sensor to sound an alert, therefore, notifying the user that the alignment is complete & the time reading is accurate.
An additional feature to this design is that the user no longer requires to follow a precise visual alignment of the nodus “sunspot” onto the analemma curve to tell the time. This can now be done without any visual confirmation by simply rotating the alidade until the sun is detected onto a sensor to sound an alert, therefore, notifying the user that the alignment is complete & the time reading is accurate.
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