Multi-Material Fidget Cubes

Fidgets are new to me and I wanted to try making one that combines TPU with PLA. These print-in-place cube strings use an internal TPU hinge & the tension from the flexible TPU can hold the PLA cubes together in a variety of shapes. TPU ‘nubs’ at the end of each string allow them to be chained together at perpendicular angles & even allow for attaching features like the little caterpillar head in my example images. Check it out in motion: Choosing FilamentI’ve tested this model with multiple TPU types:TPU 95A HF is my favorite for this model - firm but still easy to manipulateTPU 90A works well and is much looser than 95A. I was able to test the new Quicksilver 90A from Bambu which you can see paired with the PLA Metal Iridium Gold in the photos for this post.TPU For AMS has the benefit of being easy to print but is quite a lot stiffer than the other options. Although functional, it’s maybe not quite as fun as a fidget.For the PLA element, just choose anything that looks nice! I’ve tes