Snap together chain fidget

thingiverse

I wanted to create something with snap together parts, and this idea somehow popped up. It turned out to be a fantastic fidget. Fidget-wise, I prefer keeping the chain as a line instead of linking it into a circle. For those who keep the chain as a line, I've provided a little end support because the open link on one end tends to get damaged. I experimented with the teeth on the pin part. At this size, each part length is 2.54 cm, the teeth design works beautifully. None of my chains have come apart and that's with extensive fidgeting. When I scaled this up two times, the teeth were too rigid, and some of them broke off when putting it together. So bottom line, if you're going to scale this, you may want to change the teeth design and tolerances. A pro tip: If you print out a set to give away, don't put the chain together. Let them do it. Print Settings Supports: Yes Infill: 100% Notes: The small annular rings on the pin are angled so that they don't need support. Make sure that the supports only go inside the link with the two holes and the bridge. If you get support in the small groove of the pin, it can be difficult but not impossible to remove.