2016-01-06 (W) ESPeri.Impass

Two prints were made. One print, shown on the left, was identical to the one modeled yesterday. On the right is a model which didn't have the top portion of the model removed.  This part was removed to save plastic but was added back so it would print better. The print on the left, was printed right-side-up while the print on the right was printed upside-down. Printing upside-down produced a better cone in the top of the model but used more plastic. Spinners of this variety were smaller than the previous version.

First set of prints

Tolerances on the magnets were not enough to actually insert the magnets so a second set was printed with larger holes for the magnets.  New magnets were used. Previously the magnets were purchased from a unique warehouse as a 4-pack but a hardware store had a 10-pack of smaller magnets so the model accommodated the smaller magnets.

Second print with magnets installed

Magnets were easy to insert when the clearances for the magnets were doubled. It was possible for the magnets to fall out so they would not be portable unless the magnets were glued in place. A picture was taken to show that the magnets should be able to touch the post while the facing north.

Interior view of spinners

To do:
  • 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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2016-01-04 (M)