Looking at my pictures, looking back, it is now obvious that I’m a better trellis maker than a gardener. Hey! no photos of plants growing on these trellis structures…

These diagrams look complicated, like any magic trick. But when you fasten the third string of ribs to the two open spines the elegant simplicity of the construction of this tetrahelix is a revelation. The third face, the final string of ribs, magically makes the two dimensional constructure into fluid curves in three dimensions. Viewed […]

Instead of beginning with the enclosed tetrahedra, I concentrated on the outer edges of the tetrahelix to make them the most visible part of the structure. I made a small model with twist-ties, thin wire, and stiff straws, then outlined the struts of each “face” between the outer curved backbones with different colors of yarn. […]

This is the first hanging tetrahedral trellis. I played with the doubled tetrahedra, making various not-quite-free-form arrangements of the skeletons, repeating the sequence to make a larger construction. This was made with ridged plastic straws, plastic pony beads, and wire from The Scrap Box. It’s lightweight and strong. It lasted two years outside, exposed to […]

My goal was to make a structure with the graceful curves of a helix, not quite so elaborate as the double helix dna but none the less elegant. Having succeeded in finding an efficient method of stringing tubes together into doubled tetrahedrons I was hoping to be able to add the necessary elements easily. Apologies: […]