I first made a different Thingiverse as card holder but has issues with the cards falling out. This file which added springs to hold the cards in works great. I do think if I could change the threading to something less fine that I would. I also would try printing without support. I used PVA and soaked it for several days and rinsing whenever I thought about it. But as you can see, obviously didn’t get all of it off this print. It works great though. The threads have been difficult to use and I’ve worked the cap on tighter and looser a lot to get them to work smoothly. I’m still learning about my printer and 3D printing. So I’m a month or so, I may give this a whirl again and see if I can make it better by changing my print settings.