About this 3D model

This is a mount for classic [Rostock 3D printer](http://www.thingiverse.com/thing:17175) to allow quick change of hot-ends and other tools on your printer. I took the idea from [RichRap Quick-Fit](http://www.thingiverse.com/thing:24364) But it's not compatible because Rostock platform is smaller than RichRap's Quick-Fit carriages. Design created in [OpenJSCAD.org](http://openjscad.org/)