Thank bundyr for the lens hood, a nice part that can not only block glare but also protect the lens.
Please open the link below to get the hood, which is NOT included.
This is a lens cap that works with bundyr's lens hood, providing better protection for the lens.
I had to enlarge bundyr's hood by 104% to fit my SJ4000 because my Prusa I3 always prints smaller holes. The original cap fits perfectly with the 104% hood.
So just scale the hood and the cap up or down to fit your camera.