This model was made in Morphi by adding and subtracting hemispheres and a cylinder. www.morphiapp.com. No support is required and you can resize the bowl in your slicing program as you wish. Print our model or design 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. www.morphiapp.com 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.