Let the loop surprise you.

Set a hinged sculpture in motion.
Turn it, coax it, find a shape you love.

Loading the loop…

Drag the space to orbit · drag a silver joint to reshape

t = 0

VIEW

THE SHAPE OF PLAY

Choose a loopChoose a finish

Motion speed1.00×

A continuous loop of rigid tetrahedral links. The numerical model keeps their edge lengths and hinge design as it moves.

Coax a joint

Pick one silver joint and nudge it in the view plane. The solver looks for a nearby closed shape. Large moves can reach a limit.

Joint

Ready

See its structure

Hinge axes Silver joint handles Centerline

Surface opacity1.00

Facet width · display geometry0.24

Changing facet width changes the displayed linkage design. The artwork is a surface finish; contact between facets is not simulated.

Explore the mathematics

Motion family

Hierarchy orderX(1)

Hinge design · torsion

Torsion redesigns the hinges; it does not turn an unchanged linkage. The solver may stop at the edge of a local branch.

Closure

Motion Paused

Closure error Frame error Energy 1 Energy 2 Writhe Linking

Three little experiments

Follow your curiosity. Discoveries stay saved on this device.

Run the motion and watch the shape evolve while its chain stays closed.

Orbit the sculpture. A small turn can reveal a very different silhouette.

Pause and drag a silver joint, or try the joint nudge controls.