viking4d• Be sure your Husqvarna Viking 4D Software is confured with Send 1 direct USB . Connection to the Desner Diamond . 1. Open 4D Embroidery Extra. 2. Click Hoop. In Hoop Group select44 Free 3D Viking Model files for free download in .Blend .Max .Obj .Skp .C4d .x .Ma .Stl with hh quality, low poly, r, animation, printable.