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).