Dynamic Geomag Gears
Dynamic geomag gears
Rods 741 × Geomag rod icon
Spheres 234 × Geomag ball icon
Author aldoaldoz

Six Geomag gears. In a perfect world they would turn forever...

This model has some problems (read also my comment on Flickr): its movement is not perfect, and it's not easy to make it run fast. All I show in the my movies is authentic, but sometimes the movies have been edited after a long series of attempts.

Building Instructions Edit

  1. Build 6 gears (6 × (30 + 15) rods, 6 × (12 + 5) spheres).
    • The gears are the most critical items. The tooth spheres (see label 2 in figure below) must be North (N). The intermediate spheres ( see label 1 in figure below) must be a weak North as well, otherwise the interaction between two near gears is even more problematic.
    • he rods without N or S indications are only the two horizontal closed loops of 5 rods, which are all attached north against south.
      Dyn Gears GearPoles

      Polarity of the rods in the gears

  2. Build the bottom part (54 rods, 19 spheres).
    • he external corner spheres must be North to attract the bottom sphere of the gears, which is South.
      Dyn Gears Bottom

      Bottom part

  3. Build the star-shaped top part (417 rods, 113 spheres).
    • The six spheres that will hold the gears must be north.
    • he spheres of the central column (that are the same height as the gears) must be perfectly neutral: this is the reason why this column is hollow (no six-rods star with a central sphere). As a result the column is a little bit weaker, but it also doesn't attract any of the gear teeth.
      Dyn Gears Head UpsideDown Complete

      Top part, upside down

  4. Connect all the pieces.
Community content is available under CC-BY-SA unless otherwise noted.