The perceptive viewer will see beyond the shapes and observe that they take up seemingly impossible attitudes and ask 'How is it so?' This visual simplicity, freely floating in space, suspended from a single off-center point is in fact achieved with considerable complexity.
The artistic quality deems external nuts, bolts, fasteners, adjusters, holes, clues as to how it is done to be unacceptable.
Yet, provision must be made for final adjustment after assembly since design-time calculation cannot accomodate such variables as weld sizes and position, machine tolerance variations that would affect final balance.
These concepts can theoretically be scaled. However, the desirability of using commercially available materials and shapes such as extrusions impose various restrictions. Further, analysis of the dynamic forces involved may determine other limitations on the concept. Sizes suggested for each concept considers these practical matters.
All component parts are designed according to sound engineering principles and mechanical theory and must be precision machined to close engineering tolerances.
Materials include structural grade steels and aluminum, stainless steel, high tensile steel, lead and reinforced concrete.
Surfaces may be chromium, brass plated, anodized, painted.
Inclusion of precision, anti-friction bearings - ball, needle roller, taper roller along with lubricant/dust dynamic seals.
Structural methods include electric and gas shielded welding. Possibly some case hardened components.
Some of the indoor concepts may include an electric motor to steadily rotate the sculpture or, to intermittently stir it up!