Hmm.
I do quite a bit of parametric modelling and I see how something like this could be made. Find the angles of the sun at specific times, project planes at a fixed distance and angle matching around your cylinder, sketch the time number you want on each plane with a fixed pitch and then project-cut back through the cylinder. Would be a pain in the ass though. And a pretty tough 3d print without soluble supports, given all those tiny tiny interior walls and cavities.
Actually printed one on a Zortrax printer a few years back - not perfect, but came out pretty good.
There are two different versions depending if you're in the northern or southern hemisphere. It's fun to show it to people and show how it changes if you rotate or adjust the pitch/angle of the sunddial.
Nope, I printed this with a poorly calibrated FDM printer and it still worked great.
That's my secret... All of my printers are poorly calibrated
That's a cool project, it'd be interesting to see a time-lapse video through full daylight hours (with a couple extra frames at the intervals when the numbers are clearest).
Closest I could find is this 6-hour timelapse
20 minute segments, cool!
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Looks like it's this thing: https://www.thingiverse.com/thing:1068443
It moves in 15 minute increments - slowly fades as it changes numbers throughout the day
I did not. I saw it on Mastodon.
How do you reset it after the powers gone out?
You don't have to cos we'll all be dead
It looks cool, but I do wonder how accurate it is.
I believe it will depend on the time of year and latitude, but I'm no scientist.
A few ground markings could make it analog as well.
This is about as analog as it comes.
We have restarted up functional print over here at kbin,
kbin.social/m/functionalprint
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