4 Tier Card Holder

** Update 8/26/2020** I thought i had updated here as well. My new flatpack system has many different sizes, Standard and Mini that allow for more combinations and less storage space. Check them out. https://www.thingiverse.com/thing:4347124

** Update 5/8/2020 ** For those that enjoyed this model I have created a new 2 tier flatpack collapsible card holder. I'm working on other designs as well to get more tiers and wider. Enjoy https://www.thingiverse.com/thing:4347124

**Update 2/23/2019** I have uploaded a V2 after some feedback on facebook. This takes a bit more plastic, however it's not as flimsy. I set for 3 walls. As yet I have not printed this so not sure how well it will print yet. The hope is no supports will be needed. Also, after discussion the 2 bottom card holders are deeper so they can hold larger stacks of cards than the top 2 sections. I have also beefed up the support "fins" underneath and tried to remove some plastic from the bottoms of the card se