pallet jack 3d model

Create a precise 3D model of a crane pallet lifter (pallet lifting attachment). Base the geometry on the reference: two parallel forks sized for a standard pallet, a vertical frame, and the top structure for crane hook attachment with a balance adjustment mechanism. Keep all dimensions realistic and the structure mechanically accurate. No textures, no colors, no lighting, no shadows, no background, and no rendering effects. Clean, solid geometry only. Model must be watertight and suitable for 3D printing.