Air Bellows origami structure

Air bellows that folds along the inner edges origami style as it compresses so PP is the filament of choice.

Update May 2020: Added a rounded bellows edge stl file. The Cetus tool chain has a firmware bug when printing a vase that rounds small Z changes to zero which caused me lots of grief. I finally converted the printer electronics to a Duet2 controller board and only kept the mechanical. Now I can print a round vase structure. The latest stl file slices better and I can print a much thinner bellows wall (about 0.3mm) using a thinner layer height. A thinner wall reduces the force required to flex the bellows edges (hinges) and compress the structure.

Slice and print in Vase mode. I used prusa slicer to create the gcode for my cetus printer that has a 0.4mm nozzle. Slice with a 0.2mm layer, 0.6mm paving width, 8mm brim, and the default 3 layer center for the vase bottom is fine (the design is an open tube at both ends), this becomes the top bellows seal. This print is thin and