This most recent Z-Woggle arrester/eliminator is one of the most interesting. Unlike the super-fantastic Z axis crank, this part does more than just make the MakerBot easier to use – it will almost certainly improve the quality of your prints. Also, unlike it’s predecessors it does not require the installation of a second set of Z axis rods.
It’s pretty amazing how quickly upgrade parts can evolve. The first version of this upgrade was posted on April 7, 2010 and this pretty nifty version was posted on May 10, 2010.
Another thing I like about this part is it easily made with a 3D printer, but much more difficult to manage with just a laser cutter.
One possible issue I could see with this part is that it may cost you a slight bit of Z axis resolution. Since the part doesn’t appear to fit snugly in the Z stage, the Z axis rod will have to rotate a little before it will “catch.” (Or, so I suspect).