Collapsing Cube Moldmaking Studies

I've been studying certain sizes and shapes of collapsing cubes and assessing a method of pattern development of an armature to be built up in styro-foam.



Starting at a size that will be five feet on each side, I've decided to convert to millimeters for simplicity as opposed to using fractions.



Intersecting this cube with a radius of thirteen feet I've come up with the above as a derivative that is one-eighth of a cube for mold-making purposes.

Pinecone

Another try at the pineapple or pinecone shape. I increased the segments from 12 to 24 on the vertical axis. Worked on making the basic shape more elliptical first.

Prolate Spheroids - Egg Shapes

After developing another shape I wanted from a simple egg-shape formula I nested a smaller version inside another and created pyramid studs across the surface by connecting intersection from one to the other.

Tube Cube

Cubeholeio

Octahedron

Sphere Square

I'm just now intuiting how unstable this would be with only four points of contact to structurally hold this together. But I also get the impression I could make this into a kinetic sculpture if they were helical gears linked across by two axles.

A little fun with the extrude button across a wavy membrane.

Preliminary sketch of an octahedron.

Here is a quick exercise I did to study intersections from cylinders to spheres.

The following were sketches I did a while back changing the template to Google Sketchup's crayon or charcoal, if I recall correctly. It imitates looser line in a sketch.

Wavy Cube 2

After reducing the wave amplitude.

Wavy Cube ~ Before Trimming Overlapping Intersects

Modulated Cube

Staying with five cycles of waves (across the diagonal on cube faces I lessened the amplitude of the cycles by half and got the above result.