bilateral leg braces 3d model

Create a pair of bilateral wearable assistive legs designed for an adult male with spastic diplegic cerebral palsy. The device is not an exoskeleton—it is a rigid external walking frame that fully supports body weight, while the user’s biological legs rest passively inside a custom-molded inner sleeve. 🔹 Overall Structure Two identical legs (left and right), spaced 600 mm apart at the hip. Each leg consists of: Inner soft sleeve (thermoplastic + foam) Outer rigid frame (aluminum) Wide footplate (steel) 🔹 Inner Sleeve (Wearable Interface) Material: Smooth, matte white thermoplastic shell with light blue foam lining. Shape: Tapered cylindrical sleeve from mid-quadriceps to mid-calf (~750 mm tall). Top diameter: 150 mm (thigh) Bottom diameter: 100 mm (calf) Wall thickness: 5 mm (3 mm thermoplastic + 2 mm foam) Surface: Seamless, contoured to human leg anatomy, no sharp edges. Function: Non-load-bearing—holds biological leg in neutral, relaxed position. 🔹 Outer Frame (Load-Bearing Skeleton) Material: Brushed alum