KDM Flat Events/Discoveries Card Box

Someone asked for a flat version of this box. I used to use something like this in the V1 version, but it was too flimsy to work well so I never uploaded it. This V2 version should work better than the V1, but the over-sized lid is still going to have some stability issues.

Note that I have not test printed this file and won't be using it myself, so support or further versions will be limited. If there is support needed such as cards not fitting, post a comment and I'll try to address it.