One of my college professors used to build all sorts of things with a http://www.fischertechnik.com/ http://www.fischertechnik.com/ set. I think he once mention

One of my college professors used to build all sorts of things with a http://www.fischertechnik.com/ http://www.fischertechnik.com/ set. I think he once mentioned that it was somewhat compatible with Lego blocks, but I see no evidence of that. Perhaps some pieces work...