This research deals with generation of double curvature forms with a single module: an equilateral triangle. Keywords: dome, geodesic, engineering, invention, discovery, find out, geometry, cupola, coupole, network, strut, connector, node, hub, building, space, structure, architecture, triangle, equilateral, identical, double curvature, doubly curved surface form, Lobel, form, business, venture capital

Think of an application for Lobel Frames, other than architecture ? Let us know !
Q: 6 equilateral triangles flat form a hexagon which is a figure that one cannot make convex. How do you procede ?

A: Positive and negative angles (mount and valley).

Q : Equality of lengths, proof ?

A : Extracts of files allowing to check lengths from a part of 4446.csm shape in the following formats: dxf, dwg, 3ds, max.
For you to play with !