2015-02-17 (Tu) ESPeri.Impass

The drawing from the previous night was used to draft the part in 3D. The very first idea was a complex method of including a cylinder, removing two cubes from it, then removing a smaller concentric cylinder. The second method was simpler and involved simply adding a cube, rotating then moving it a distance based on the Pythagorean theorem. Today the process was further simplified to a cube being rendered and a cylindrical portion of a corner was removed.

 Top view of original tube

The cube was added by first adding more variables to the top and rendering a cube with the declared variables. Since the bottom and center of the tube was at the origin the cube was positioned ideally by declaring that the center of the cube should not be used as the point of origin for the cube.  A cylindrical hole was removed from the corner of the cube which touched the center. This was all that was necessary to create the internal ledge/anvil and the external pointer.

Top view of added cube

External view of added cube

Internal view of cube with axle clearance

To do:
  • Install larger bearing 
  • Cut/bend hanging bracket for spinner
  • Add direction arrow to base
  • Buy spongy material for spinner to land on
  • Design bottom for compass to land on
  • Test + Evaluate hanging tubular compass
  • Redesign, Rebuild, + Repeat

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

A list showing of all the final posts of COMPLETED projects.


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2015-02-16 (M)

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