Armillary Sphere
by Zippitybamba
Printable files (15)
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stlearthmap.stl
6.1 Mo · 7 198 downloads
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stl
Base.stl
229 Ko · 6 792 downloads
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stlHorizonDetailed.stl
198 Ko · 6 376 downloads
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stlColure.stl
476 Ko · 6 344 downloads
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stl
CageAxis.stl
323 Ko · 6 775 downloads
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stlTropicCircle.stl
557 Ko · 6 337 downloads
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stlArcticCircle.stl
536 Ko · 6 338 downloads
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stl
Ecliptic.stl
2 Mo · 6 743 downloads
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stlHorizonLeg.stl
355 Ko · 6 335 downloads
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stlEquator.stl
969 Ko · 6 326 downloads
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stl
Meridian.stl
1.1 Mo · 6 749 downloads
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stl
Colure_NoHoles.stl
343 Ko · 6 633 downloads
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stl
Equator_NoHoles.stl
930 Ko · 6 634 downloads
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stl
Ecliptic_NoHoles.stl
1.9 Mo · 6 617 downloads
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stl
Tropic_NoHoles.stl
517 Ko · 6 619 downloads
Description
A working model armillary sphere for calculating location and timing of celestial events. For any latitude on the planet, allows you to predict the location on the horizon where the sun will rise and set, the time it will rise and set (relative to local solar noon), and the height of the sun in the sky at any given time of day.
How to use: https://youtu.be/MQjWQJ1yjS8
How to assemble: https://youtu.be/3oEKXXeu194
I recommend watching the tutorial videos on assembly and use. You will need 4x M3 screws, ~10mm, plus cyanoacrylate glue. Several parts require multiple copies, including:
-HorizonLeg x 4
-Colure x 4
-CageAxis x 2
-TropicCircle x 2
I was asked to make versions without screw holes. Look for the "NoHoles" files for those.
As for the printing, it's all pretty easy except for the arctic circles. They required supports and a skirt. I use a 0.4mm nozzle, 0.25mm layers, 15% infill.
All of the structure is original except for the globe model, which is by "bld" at https://www.thingiverse.com/thing:17336.