flypig.co.uk

Now sporting its new name, along with a bundle of bug fixes, a new version of Knot3D is now available. Knot3D is an open source (MIT-licensed) Celtic knot rendering program. As well as traditional flat knots it'll also create full three-dimensional cuboid knots, which can be output as mesh files for rendering or 3D printing. Installers are available for Linux and Windows (as well as the sourcecode if you're using something else).