Portable equatorial Solar Watch / Sundial V2
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allows you to read current sun time
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Updated at source:
Model information
- Source
- Printables
- Category
- Physics & Astronomy
- License
- Creative Commons — Attribution — Noncommercial — NoDerivatives
Print without supports. Fix holes using 1mm drill bit(carefully! and do it manually :) )
Cut 1mm steel wire, and connect parts. Optionally, you can add string.
How to read hour?
1. Open protractor, and tilt it by 90 deg
2. Open gnomon and tilt it by 90 deg from dialer
3. Open Dialer, and tilt it by your actual latitude(about 50deg for Warsaw) from vertical position
4. turn the clock towards South(on north hemisphere) or North(on south hemisphere)
5. Gnomon's shadow show you actual astronomical hour.
Indexes:
lower- 12
left- 18(north hemisphere), or 6(south hemisphere)
right- 6(north hemisphere), or 18(soutch hemisphere).