peeler blade has compound curvature of pole, with rounded edges to get under bark without cutting into pole -- much superior to draw knife.
~ GUTTER ADZE ~
hollow out poles to create gutters, then torch char gutter to preserve it.
Unique ergonomic & highly accurate adz will carve huge quantities of wood in a short time! Other hand tools available that can compete with power tools.
Built to order or plans available.
Super-fun octahedron-tetrahedron “ThinkerToy” swing spins 6 swings high and fast. Always the highlight of the party for kids and adults!
Available as kit to assemble yourself !
HIGH & STABLE ARTICULATED STILTS
Uneven parallelogram articulation gives mechanical advantage to large feet below. Slide-attached hip harness gives great stability and leverage to 4’9” leg extensions.
~ TENSEGRITY CURVED SPACE ~
Six tetrahedral hyperbolic paraboloids in cuboctahedron as design for ferrocement playground structure.
~ HYPERBOLOID DRUM ~
Interior hollow of drum is hyperboloid of revolution1``````````````````````, which allows entire skin on one side to “see” entire skin on other side, imparting excellent tone and resonance to sound. One head is larger than the other, with differing leather thickness, imparting distinct tone and tambre differences.