This is a remix of two models along with a parametrically generated nut and bolt set so that you can print a self-standing digital sundial on one plate. Please note that this is only for the Northern Hemisphere. You can easily swap out the Southern Hemisphere STL version as they are the same size. Obviously the printed nut and bolt will not produce the same level of immobility a metal one would achieve, but it is good enough for a model that will mostly stay in one place,. I printed mine in white PETG for use outdoors. I would recommend PETG or ABS or some other heat and weather resistant filament instead of basic PLA. There is a stand for both winter and summer use. The winter stand has the greater angle (i.e. not as tall).

Here are the original models:

Mojoptix Digital Sundial - https://www.thingiverse.com/thing:1068443

icefox1983 simple digital sundial stand (summer and winter) - https://www.thingiverse.com/thing:2041551