GrabCAD 模型信息
Abstract art shape extruded tetrahedron with concentric circular rigs connecting internal girders · 模型 60881
A regular tetrahedron which has been opened up into a skeletal, highly geometric framework instead of a solid volume. Each visible face is a large equilateral triangular frame and the three faces converge along straight ribs that meet at a central three-way junction. Rather than being solid triangular panels, the faces are open, allowing the interior structure to remain visible from multiple angles. Within each triangular face is a pattern of concentric circular rings centered near the middle of that face. These rings are interrupted by the structural ribs of the tetrahedron, dividing each circle into three equal arc segments that occupy the triangular regions between the ribs. The spacing between successive rings as well as their thickness is uniform. The three internal ribs radiate from a small central node toward the vertices of each triangular face, creating a three-armed, Y-shaped arrangement. These ribs bisect the concentric ring pattern, so every circular band terminates cleanly against a rib before continuing on the adjacent sector. At the center, the innermost rings surround a small circular nucleus that is itself divided into three equal sectors by the same radial framework. Near each corner of the triangular faces, the circular pattern gives way to short, straight transverse members spanning between the outer frame and the internal radial girders. Because all three corners are treated identically, the face exhibits threefold rotational symmetry. The design combines three principal geometric systems: the equilateral triangular boundaries defined by the tetrahedron, the radial three-way division created by the internal ribs, and the concentric circular rings centered within each face. The interaction of these systems produces a regular lattice of curved and straight elements whose symmetry is maintained across the visible faces.
- 格式
- KeyCreator、STEP / IGES、Rhino、Rendering
- 分类
- Hobby、Just for fun、Miscellaneous
- 标签
- interior、girders、geometric、framework、frame、equilateral、equal、elements、division、dividing、divided、curved、corners、tips、corner、converge、concentric、circular、circle、central、centered、center、boundaries、bisect、arrangement、arc、angles
- 数据更新
- 2026-09-21T20:01:05Z
