This is a spiral hourglass fidget with an enclosed spiral ball that moves around smoothly.

Most of these spiral fidget toys are open on both sides, which means that the spiral ball inside, can easily fall out and accidentally drop on the floor. I solved this issue by closing both sides of the outer body. The spiral ball is now locked inside and you don't need to worry that it could fall out.

The spiral ball can easily be inserted during an quick layer pause. 

Print instructions

- Print the spiral ball beforehand (or even simultaneously on another printer)

- Add a layer pause at 101.4mm, insert the spiral ball and then resume the print

Print settings

supports - no 

brim - no

layer height - any (0.2mm is tested)