New tutorial for PLaSM was finished, see http://femhub.com/nclab-tutorials/. PLaSM stands for Programming Language of Solid Modeling, and it allows you to create advanced 3D designs. The language is very simple. For example typing CUBOID([1, 1, 1]) will render a unit cube. There are various other simple objects (sphere, prism, cone, …) that you can create, transform, add to or subtract from other objects, creating basically anything you like. And the WebGL rendering in the browser is really cool as well. You can design your own house and then walk through it!