2015-12-22 (Tu) ESPeri.Impass

Only a minor change was done to the spinner. A groove was removed from the bottom. Its purpose was to allow a screw, protruding from below, to pass under the spinner as it rotated. When the spinner faced north the wobbling effect would allow for a metal-on-metal collision between the screw and magnet. Currently the metal-on-metal collision will also take place when facing south.

Rotating view of spinner model

The base received three changes. The first change was to make the central post identical to the test base which make wobbling on at the poles possible. Secondly, a hole was added to add a brass screw through the bottom. A screw will be used so the height can be adjusted while testing. The last change was to add fastening holes around the outside so a top can be modeled later and enclose the entire project.

Rotating view of base model

To do:
  • Optional:
    • Add compass rose to spinner
  • Remodel spinner as simpler shapes
    • Sphere
    • Pivot at center
    • Keyed bottom hole
    • Magnet pockets in bottom half
  • Compare code of original to updated
  • Add “keyed” features to only allow slop when facing north
  • Make handheld haptic compass
  • Make compass work from pocket or necklace
  • Miniaturize

The rest of the posts for this project have been arranged by date.

First time here?

Completed projects from year 1.
Completed projects from year 2

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2015-12-21 (M)