Yes, that is how I am storing them. I tried to optimize the containers as a whole and I couldn't make it work with the space available, the issue is that the storage of the dials is very limited in how you can design it. I am working on a second iteration that lays the cards and double layer boards at the bottom, but I am having the same issue. The dials make the space oddly shaped and difficult to optimize.

I totally get why it's tough— there's not a lot to work with. The slots for the dials are the most appealing part, but they're really hard to grab right now, and it's all a little too tight to slip the whole thing in and out easily. It might help to merge the large card trays into one piece (with a divider) to gain a little space, and lower the walls so there's room to get your finger in and grab a disc after you take the cards out. Would you be open to sharing the source files?

I would be happy to share the source files. Fusion is what I built it in. Not sure how to get them to you though.