Mechanics Of Form


Image 10.09

  Update: 20/05/2016


Image 10.10: version 2

  Update: 20/05/2016


Image 10.06: version 1

  Update: 24/01/2016


Image 10.05

  Update: 22/12/2015


Image 10.08: large scale plastic pumping thing

  Posted: 12/05/2016

Doubts.

  Posted: 12/05/2016


Image 10.07: plywood pumping thing

  Posted: 21/04/2016

Weight of the wooden parts: 8,5 kg. This does not include rods, screws, bearings or brackets. Those would easily add another 4 to 5 kg. This thing is getting awkwardly heavy.

  Posted: 21/04/2016


Image 10.04: ready for print

  Update: 06/12/2015

The basic mechanism to make it work is to turn the disk at the bottom. There's a set of gears in the base that make the central shaft twist through 90 degrees and then back again. This turns the gears of the main hub which pushes or pulls the arms.

  Posted: 03/12/2015


Image 10.03: basic mechanism 2

  Posted: 23/11/2015

Changed mechanism. This new one helps to avoid problems, regarding the flexed arms colliding at the center.
Also, it’s just more elegant.
Reciprocating mechanism that can be driven by the rotation.
As standalone object it could change from one shape to another simply by pushing down on the corners of whichever shape (the cube or octahedron).

  Posted: 03/12/2015


Image 10.02: basic mechanism 1

  Posted: 23/11/2015

Basic mechanism. Need to ensure that all parts can fit in.
The shape is more of a cube, 120mm on each side. As long as everything fits in and works, scaling it up shouldn’t be a problem.
The cube arms extend to twice their length, so they will need to bend as they move inwards. So they’ll have to be flexible enough to follow a pathway inside the structure (and away from the mechanism in the very center)…
Flexible isn’t ideal and rather depends on the material. 3D printed polyamide does have some flex but how will the flex manifest when the arms are out and pushing the stretch fabric?
Accept this unknown and just hope it works fine…

  Posted: 03/12/2015


Image 10.01: minimum volume

  Posted: 23/11/2015

A drawing to figure out the minimum space within which the arms and mechanisms have to fit.

  Posted: 03/12/2015




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