I don't know. I'm fairly sure the OEM part was plastic. The parts don't seem to be under much stress, and the stress is distributed along the length. I've never done 3D printing, but a few components I've encountered that are printed seem to be made of material that would be strong enough. There doesn't seem to be any other practical way to keep the cabinet halves together, so I'm pursuing duplication of the zippers. Any other idea would be appreciated!
