We made this model using cones, tori, hemispheres and spheres. Extra care may be needed when printing the top of the queen chess piece. You may need to adjust (slow down) the speed for optimal printing, although no support will be needed.   Print our model or make your own in the app. In Morphi, users of all skill levels can make 3D printable objects on the go using touch, without wifi or a mouse. Download the app for free for iPad and IPad mini on the App Store. https://itunes.apple.com/us/app/morphi/id833530351?mt=8 Coming soon for Android!Copyright 2014-2015, The Inventery, Inc.