Playing around with the TPU, this is version #1, done in Fusion, one solid piece.
Kinda cool.
Turned into a TPU bridging torture test though. this has made me realize that infill can affect the quality of the bridge. On a couple of the triangles, the 5% gyroid was lined up advantageously, and worked great. Others, not so much.
Next versions, smaller, hinged PLA, dual filament, PLA & TPU.