Customizable Nocturnal

par RyanMellor

Fichiers imprimables (4)

  • stl

    Nocturnal_-_Pointer.stl

    119 Ko · 1 309 téléchargements

    Télécharger
  • stl

    Nocturnal_-_Spiral_-_Handle.stl

    625 Ko · 1 297 téléchargements

    Télécharger
  • stl

    Nocturnal_-_Spiral_-_Inner_Ring.stl

    844 Ko · 1 320 téléchargements

    Télécharger
  • stl

    Nocturnal_-_Spiral_-_Outer_Ring.stl

    1.3 Mo · 1 296 téléchargements

    Télécharger

Description

A nocturnal, also known as a star dial, is an analog computer used for telling the time using the relative positions of stars in the night sky.

Reference stars:

  • Pointer stars of Ursa Major
  • Kochab of Ursa Minor
  • Shedar of Cassiopeia

To operate:

  • Spot one of the reference stars and align the relevant constellation on the inner ring with the current date on the outer ring.
  • Sight the North star (Polaris) trough the center hole
  • With the handle pointing down, align the Pointer with the chosen reference star
  • The Pointer now intersects the current time on the inner ring!

NB - The customizer app seems to return an error while rendering the more complex components (Inner and Outer Rings), I'm looking into this problem but for now I have uploaded STLs for the 'Spiral' style nocturnal, and you can still customize by downloading the OpenSCAD file.

Tags

#customizer