Nobody could guess, what this thing will turn into , when unfolding ...

You need:

• 12 printed items
• 5 springs of https://www.ebay.de/itm/10x-Metall-GT2-Zahnriemenspanner-Torsionsfeder-für-3D-Drucker-6mm-Breite-Gürtel/122774285175
• 18 M3x10 screws and nuts

to assemble:

• cut off a little piece from the springs with a bolt cutter(you will realize)
• combine 2 stripes and one spring each
• finally combine the double stripes as shown in the picture

Category: Math Art