3D printable sci-fi mechanical spider artillery construct, four thick mechanical legs, heavy armored body, large forward mounted energy cannon, alien skeletal mechanical design, ancient robotic war machine aesthetic, thick reinforced leg joints, hard surface mechanical armor, exaggerated miniature details, designed for tabletop miniature scale, resin printing friendly geometry, watertight manifold mesh, no thin cables, thick armor edges, exaggerated miniature sculpt details, designed for resin miniature printing, manifold watertight mesh, tabletop war miniature sculpt legs thick and planted on ground for stable printing