About this 3D model
The Z stage of the Thing-o-Matic has 2 unused mounting holes in the back. Yet it only supports it's heavy extruder from the left and right using long levers. When transporting the ToM in a vibrating vessel, maybe even non-upright, there is lots of stress on these tiny bolts. (Think of having it on it's back in the overhead compartment of a train.) So I'm testing this to support the extruder stepper from the back with a third "dino". Blog-posting: http://marcuswolschon.blogspot.de/2012/12/thing-o-matic-3rd-dino.html