The first model was built during the Turtle Blocks after school club I facilitate. I programmed a single petal in a flower and exported the design as an .svg file. I imported the .svg into Tinkercad and extruded sized it. By copying, pasting, and rotating the shape I built one of the models for the sunflower. I 3D printed it just about as largely as my Thing-O-Matic could produce. Two copies of this design were 3D printed. A third copy with the petals "filled in" was also 3D printed, but only 2mm thick as opposed to 3mm for the others.
The very center of the sunflower was programmed as a whole design, extruded and sized in Tinkercad, and 3D printed. Two copies were printed in tan filament, while a third was 3D printed in yellow ABS.
The models were attached to one another through a hole in the center through which an M3 bolt was screwed. The tolerance was tight enough and the stack of models tall enough that no nut was required.
The top step was attached to a thicker stem 3D printed in green ABS filament. The M3 bolt attached to the big stem as well.
This work and images copyright 2015 Josh Burker