It’s not a secret, but I haven’t really posted here about here it yet: I’m building a MakerGear RepRap Prusa Mendel.
I’ve posted a few photos of it in progress in the Make Flickr Pool, and Make mentioned a few of them, but I really need to start writing more about the process. (I’ve posted stuff on Google+ along the way, mainly to get feedback/share with a few other RepRap builders.)
I’ve still got a number of hours to put into it before it’s ready to extrude, but if you want a bunch of posts from someone who already finished theirs, and is doing all the tweaking and documenting it, check out Brazen Artifice. Lots of great posts there!
Once it’s done I’ll be sure to bring it to the space for a demo.