A gift box which, when pulled, can extend quite far. It can be a fun toy but it has thin walls, so it is not that strong.

Print settings Was printed ad 0.2 mm layer height. Does need support, but the spring should be printed without support, so add a support blocker in the middle of the print (going from the bottom to the top) as shown in the figure.

Post-Printing Go with a knife or a putty knife through the layers of the spring to release the layers that are fused together.