Square Lens Hood for the Nikon Z 40mm f2 SE lens with cap

This lens hood should "press fit" onto the lens's filter thread. I added fuzzy skin to the interface surfaces (the bottom ring with the 4 notches) to add a little more grip. You may have some success actually threading it on as well. Don't press too hard. If it doesn't snap on or thread down nicely, adjust your print settings until the desired fit is acquired. The lens cap is still a work in progress and will require a 3mm OD X 25mm long compression spring. I've included a screenshot of how I have the parts oriented. The 2 smallest require a raft to be safe and some support on the main cap's outer overhangs. The hood itself needs no support.