About this 3D model

This is a new structure for the prinitng head of my ultimaker. I've made this in order to replace all the stock wooden pieces. Advantages: -really light: only 14g with 0.8mm wall and 20% infill -easy to mount and dismount This is a work in progress. I've not mounted everything on the head yet. Works perfectly with http://www.thingiverse.com/thing:45236 Edit 02 apr 13: new version V2 with a better grip on the bowden tube.