Deck holders: Firefly the Board Game

While there are several great deck holders available, unfortunately they didn't work so great for the cards when they had a card slip over them. I also wanted to practice with Fusion 360, so I made this design. Considering that this is my third design, I think it came out pretty decent.
I still have a lot to learn, so I welcome some suggestions for improvements.

Note: I am using the Robo R1 +, unfortunately they don't have that option yet.

Update 2/12/2016: I have uploaded three versions