This is my new design based on my previous single card deck holder. It is really satisfying to open and close. I upgraded the 3x3 magnets to 6x3 magnets which worked better. The material was 5mm and was pine that I stained.
This was designed in Fusion360 but the graphics were made in Adobe Illustrator. I use fusion360 so I can make it in multiple material sizes from 3mm to 5mm.
I appreciate that! I had someone who did not speak English ask for help and thought a video would be helpful. It is more work but I hope it provides a visual aid to those who need it.