The file 'Print Competition Voronoi D Tower 1/4 Res 1/2 Size By @Dizingof 3D Printer Model' is (stl) file type, size is 3.3MB.
Proposed as the model to be used in the weekly 3D printing competition for 3rd - 8th June 2012 - started by RepRapBCN - see here - http://bit.ly/Nt5SdW