Printing with support is required when plastic must be deposited on a layer where there is no or insufficient plastic on the previous layer. This includes steep overhanging surfaces, straight overhangs, and fully suspended islands. Learning to print objects on a 3D Printer that require support structures will dramatically expand the potential of your printer and give you the confidence to undertake printing tasks that perhaps you had previously avoided. It would seem though that nature doesn't like to follow design guidelines like the "45 Rule," the idea that overhanging surfaces should not exceed 45 degrees thus avoiding the need to use support (a guideline Makerbot seems to live by); and many of the most compelling objects to print require the use of support.
