Chain link fidget
thingiverse
Decorative, useless and extremely fidgety. Originally I quickly drew them up in Freecad cause I wanted to test the Assembly4 workbench. Printed them and realized they were good items to test the patience of others with :-) Could not put them aside... You need to print two of each to get one link. No special settings really, just go and you should have a nice press fit.
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