realistic combat mech 3d model

Realistic [ANIMAL] military combat cyborg, biomechanical exo-armor fused with organic anatomy, tactical assault unit design, heavy mech plating, reinforced limb guards, mechanical spine segments, articulated print-in-place joints including ball joints at hips and shoulders, hinge jaw, segmented tail chain, engineered clearance 0.4mm, single-piece FDM printable model, no assembly required, no supports, thickened structural limbs, hard-surface detailing, integrated pistons and vents, clean manifold mesh, optimized for 0.4mm nozzle printing, neutral straight pose for easy segmentation in Blender