Remixed from articulated octopus and snake designs. I took one link, copied it a bunch, and arranged in a loop to use as a fidget.
File size is about 67mm across. The larger you print, the easier it will be to remove the supports and loosen up the joints. I printed with supports and 30% fill, at 200% size, which was too big for a bracelet but nice for a fidget! You'll need to remove supports from under and between the chain segments, which can be tricky. The more you work with the chain, the smoother it will get!
ArticulatedChain_loop.stl |