Snow is only good with a compression load. Igloos must therefore be made from an inverted catenary curve shape to be strong. This is a small exa...
Andy's models is a collection of computer generated models. Most are not made in a CAD system, but are instead the output of a computer program. In the past they could only be viewed on a screen. Now with the magic of 3D printing the actual object can be produced. I'm so delighted to be able to turn the designs into a physical objects!