bionic leg exoskeleton 3d model

Full-length wearable mobility device for adult male with spastic diplegia. Single posterior unit from T10 spine to foot. Inner sleeve: translucent green thermoplastic (5mm) with silicone heel cup and vertical stiletto post behind Achilles; forefoot floats unloaded. Outer frame: brushed aluminum backplate, pelvic band, three 20x20mm struts per leg, calf/thigh rings, rigid steel footplate (250x120mm) at 10° plantarflexion with rocker sole. Load path: spine → backplate → pelvis → struts → footplate. Biological legs fully enclosed but zero-load. Industrial, hand-built aesthetic, no electronics. Stance width 600mm. Fabricable with basic tools.