Digital Sundial

A really cool design from: https://www.thingiverse.com/rickbo_99/designs

The provided OpenSCAD file is highly configurable so that anyone can customize their sundial for Northern/Southern Hemisphere, first hour, etc. The STL files provided here are for the Northern Hemisphere.

The plate design was split into two pieces such that the finer resolution portions of the design are against the build plate. Also, two different color filaments are used; i.e. one white and the other black, for the digit mask so to block the light with the dark filament but pass the light through the lighter one. 

The perimeter of the Gnomon has a groove which allows clips or a mount to attach to it.  A simple GoPro compatible stand clips to the bottom which allows the plate to stand upright on a level surface.  The stand also allows the tilting of the Gnomon towards true North, including the rotation in azimuth to allow the correct time to be displayed. 

A video of the sundial on a turntable is available at
https://www.youtube.com/watch?v=uV9baWG2YLI if you want to see it in action.

Photo & Video Credits:  rickbo_99 (thingiverse.com)

Print Settings:

• Nozzle Diameter: 0.4mm
• Layer Height: 0.2mm
• Wall Generator: Arachne
• Elephant Foot Compensation: Disabled (especially for GnomonSlot)
• Bottom Surface Pattern: Aligned rectilinear (especially for GnomonSlot)
• Infill: Gyroid/Honeycomb (something that doesn't cross especially for GnomonSlot)
• Number of Top/Bottom Layers: Enough to cover DisplayThickness (especially for GnomonDigit)
• Precise Z Height: On (since distance between the parts of the Gnomon halves matters)

Notes:  Be careful when removing the GnomonSlot from the build plate as many of these
elements are a very thin. 

The GnomonDigit and GnomonSlot parts are to be printed while sitting on their
outward facing sides. The stand/mount pieces can be printed in their normal
orientation shown in the "Parts". None of the pieces should need supports.

Assembly

The two Gnomon halves fit together fairly easily. Just make sure the minute
slots are over the minute digits when assembling it. The stand pieces fit
together fairly well but you will need 2x M5 bolts (one at least 25mm long
and the other at least 15mm long) and 2x M5 nuts. To prevent breaking the
tabs when pressing the nuts into the holders, Make sure the StandArm
is in the StandBase when pressing the nut into the StandBase and the StandArm
is straddling one of the StandBase legs (since these are the same thickness)
before pressing the nut into it.

Cap your M5 bolts with thumb friendly handles to make them easier to use
(similar to https://www.thingiverse.com/thing:5532943).

Check the video showing how to assemble the sundial and the stand at
https://www.youtube.com/watch?v=uufe-TtxyW4

Please hit the like button if you think this is a cool design!