Each piece is printed flat and then reheated to form into shape. The petals were resized in the slicer for the different layers. The innermost petals were printed at 50% size with the others somewhere between 50 & 100%. After the parts were printed I used an electric heater and some aluminum foil to soften and shape them, but something like a hair dryer or hot water would probably work better. The leaf stem was stuck through the hole in the middle of all the petals and rolled it up to hold everything in place.