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Are there any tutorials that anyone knows of to create this hinge? I have printed many of the various "Flexi" animals I've found on Thingiverse and this model has the superior hinge by far, but I'm not sure how to efficiently model this hinge myself as I would like to create a couple of these "flexis" myself but I don't want my hinges to turn out like so many of the others I've seen here.I want them to be like this Flexi Rex which I consider to be the most fun to play with and definitely strong enough.