Umulius Rectangulum (Thoki Yenn)

Designer: 
Yenn, Thoki (Kalmon)
Folder: 
Adams, Sara
Difficulty Level: 
Low intermediate
Model type: 
6 units
Geometry

This model is sometimes also called "magic rings" or "impossible rectangle". You could also call it "Borromean Rings": three rings linked in a way that by removing any one ring the other two aren't linked anymore, either.

Comments

Whenever I try this model, it collapses before I put it together. got any tips?

Hm, that's strange. I've always thought that the model is quite stable. There's a bit of tension, because the lock is so tight - at least once it's completed. Having said that, I haven't folded this model in a long time. I'm out of the country for 3 weeks now, so won't be able to give it a try. If it's still up-to-date in a month, do get in touch with me and I'll have a look into it.

-- Sara

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