As the father of a 3 year old my interest in 3D printing has been reinvigorated. I can print segments of train tracks (1) for his train set to expand and build

As the father of a 3 year old my interest in 3D printing has been reinvigorated. I can print segments of train tracks (1) for his train set to expand and build cool bridges (2). I can even print connectors that let me combine Mega Bloks (giant legos) with his train set (3), which is a good example of cool interoperability that the toy manufacturers themselves won't ever do. And I didn't even have to model any of this, since there are geekier parents than me out there. Sure, it's still all just crappy chunks of plastic, but it's pretty cool to teach my son about the tech of 3D printing in such an engaging way. 1) http://www.thingiverse.com/thing:22244 http://www.thingiverse.com/thing:22244 2) http://www.thingiverse.com/thing:608012 http://www.thingiverse.com/thing:608012 3) http://www.thingiverse.com/thing:742253 http://www.thingiverse.com/thing:742253