About this 3D model

At first,thank Ultimaker team who create the accurate and fast 3d printer. I improve the official frame lasercut, which has the following advantages: 1. Front panel with LCD,just fit for UltiController PCB. 2. Replaces Z-axis with 1204 ball screw,and it's easy to assemble. 3. Increase the space at the bottom. Now you can put an industrial power supply at the bottom. 4. Back panel support two extruders,and could mount two filament holders. This is my friend Jackhuazai's UM. Is it nice? ^o^ http://umforum.ultimaker.com/index.php?/topic/2222-my-ultimaker-with-headed-bed/