I'm super interested in online parametric CAD tools, I thought I had seem them all. I just discovered this one, it's incredible, so much closer to a professiona

I'm super interested in online parametric CAD tools, I thought I had seem them all. I just discovered this one, it's incredible, so much closer to a professional desktop parametric CAD package and its only running in the browser. There is a demo here: http://web-cad.org http://web-cad.org They seem to have developed their own Parametric NERBS Kernel and constraint solver in javascript, seriously impressive work for an open source project.